Waste heat utilization structure of cement kiln

The utility model discloses a waste heat utilization structure of a cement kiln, and relates to the technical field of cement kilns. The device comprises a wind collecting cover and a heat preservation box, a heating box is welded and fixed to one end of the heat preservation box in a penetrating mode, a heat preservation cover is rotationally clamped to the other end, relative to the heat preservation box, of the heating box, the wind collecting cover is clamped and fixed to the upper end of the heat preservation box, a connecting air bag is clamped and fixed to one end of the inner side of the wind collecting cover, and a heat dissipation pipe is clamped to the other end, relative to the connecting air bag, of the wind collecting cover in a penetrating mode. Through the air collecting cover and the heat preservation box, the waste heat utilization structure solves the problems that when an existing waste heat utilization structure of the cement kiln is used for drying materials through hot air, a simple fil