Heat-insulating wall body with waterproof priming coat

The utility model discloses a heat-insulating wall body which comprises a base course wall body; a heat-insulating layer, a primer layer and an over-coating layer are arranged outside the base course wall body in sequence; and the heat-insulating layer is composed of bonding sand pulp, an inorganic fire-resistant heat-insulating layer, a first anti-crack sand pulp rendering coat, alkaline-resistant fiberglass roving cloth, a second anti-crack sand pulp rendering coat and a waterproof priming coat from the inside out in sequence, wherein the priming coat and the primer layer are in direct contact with each other, and all the layers are compounded with the base course wall body as a whole. The heat-insulating wall body is constructed conveniently and quickly and saves labor and money.