The invention provides a single heat accumulating type denitration burner. The single heat accumulating type denitration burner comprises an air distribution opening, a low-temperature honeycomb heataccumulating cavity, a denitration honeycomb heat accumulating cavity, a high-temperature honeycomb heat accumulating cavity, an air-coal mixing cavity, corundum stop block bricks and a burning-supporting air device. According to the single heat accumulating type denitration burner, the denitration function is integrated into the heat accumulating type burner, the problem that a traditional heat accumulating type burner needs an additional ammonia area and an ammonia spray AIG device to conduct denitration treatment is avoided, and the structure of the single heat accumulating type denitrationburner is simplified; the single heat accumulating type denitration burner can be adapted to specific environments with limited site spaces; in addition, the content of nitrogen oxide in exhaust gasgenerated by burning of the traditional heat accumulating type burner is effectively lowered, and denitration efficiency can reach approximately 75%; and in addition, by means of the single heat accumulating type denitration burner, the exhaust gas temperature can be effectively lowered, and the recycling rate of waste heat of the exhaust gas is increased. The single heat accumulating type denitration burner has the series of beneficial effects of being simple in structure, convenient to operate, low in operating cost, efficient in energy conservation, environmentally friendly, high in heat accumulation and denitration efficiency and the like.