Heat recovery device for tobacco leaf baking

The invention discloses a heat recovery device for tobacco leaf baking, and relates to the technical field of tobacco leaves. The heat recovery device for tobacco leaf baking comprises a box body and an auxiliary assembly, a fixed transverse plate is fixedly installed on one side of the box body, a purification box is fixedly installed on the top of the fixed transverse plate, the auxiliary assembly is arranged on the purification box and comprises a first hydraulic rod, a movable block, a connecting rod and a vertical plate, and the movable block is driven by the first hydraulic rod to move up and down; and the movable block drives the vertical plate on the connecting rod to move left and right so as to clean the adsorbed impurities. Impurities carried by hot air can be cleaned and filtered through a first filter screen and a second filter screen, the situation that the service time of the device is shortened due to long-time accumulation caused by the fact that the impurities are adsorbed to the inner wall