Waste heat recycling device of large tea baking machine

The utility model relates to the technical field of tea leaf processing equipment, in particular to a waste heat recycling device of a large tea leaf baking machine, which comprises a gas collecting hood and a waste heat exchanger which are arranged on the large tea leaf baking machine, airflow in the waste heat exchanger is crossed by 90 degrees, and a fresh air pipe and an exhaust pipe are arranged on the waste heat exchanger. The tail end of the air exhaust pipe is further provided with an air exhaust fan for exhausting air to the outside, and the tail end of the air return pipe is connected to an air inlet of a centrifugal fan of the hot air unit. The device is simple in structure and complete in function, waste heat of the tea baking machine can be quickly and effectively recycled, and the effects of energy conservation, emission reduction, carbon reduction and cost reduction are achieved. 本实用新型涉及茶叶加工设备技术领域，尤其涉及一种大型茶叶烘焙机的余热回收利用装置，包括设置在大型茶叶烘焙机上的集气罩、余热交换器，所述余热交换器内部气流为90°交叉，所述余热交换器上设置有新风管和排风管，所述排风管末端还设置有往室外