Novel low-heating-value gas combustion equipment

The utility model discloses a novel low-heating-value gas combustion device which comprises a heat exchanger, a hot air outlet, a heat preservation layer, a heat storage resistant plate, a tail gas combustor, an air distribution chamber and a shell, the heat exchanger is fixed at one end of the shell, and the hot air outlet is formed in one end of the heat exchanger. According to the utility model, the combustion-supporting air quantity required by the combustion of the waste gas is controlled by utilizing the temperature of the completely combusted waste gas, and the calorific value of the combustible waste gas is very low, so that the combustion-supporting air quantity is very critical; in order to achieve a good combustion effect, a heat accumulating type refractory material is adopted to serve as an equipment lining, the heat accumulating type refractory material has a good time prolonging performance for maintaining a high-temperature environment, the whole combustion environment is kept in a stable temp