Self-heat preservation concrete connecting block and outer wall heat preservation structure adopting same

The utility model discloses a self-heat preservation concrete connecting building block and an outer wall heat preservation structure adopting the same. The building block comprises an outer half building block body, an inner half building block body and a heat preservation layer, wherein the distance between the outer lateral surface of one end of the heat preservation layer and the outer lateral surface of the outer half building block body is greater than the distance between the outer lateral surface of the other end of the heat preservation layer and the outer lateral surface of the outer half building block body; and the outer half building block body is provided with weight reducing holes for reducing weight. The outer wall heat preservation structure adopting the self-heat preservation concrete connecting building block comprises a column or a beam and a self-heat preservation concrete building block. When one end of the self-heat preservation concrete connecting building block is connected with the column or the beam through connecting mortar and the other end of the self-heat preservation concrete connecting building block is connected with the self-heat preservation concrete building block through connecting mortar, the heat preservation layer of the self-heat preservation concrete connecting building block, which approaches the outer lateral surface end of the outer half building block body, is lapped with a heat preservation layer on the outer lateral surface of the column or the beam; and the heat preservation layer of the self-heat preservation concrete connecting building block, which approaches the outer lateral surface end of the inner half building block body, is lapped with a heat preservation layer of the self-heat preservation concrete building block. According to the utility model, the problem of cold bridge between the beam or the column and the self-heat preservation concrete building block in the prior art can be effectively solved.