The food dryer is a batch and continuous production drying equipment. The main heating methods are electric heating, steam heating and hot air heating. The main principle is to evenly spread the material on the mesh belt. The mesh belt adopts a 12-60 mesh steel mesh belt, which is moved by the transmission device to move back and forth in the dryer. The hot air flows through the material, and the water vapor passes from The drain hole is discharged to achieve the purpose of drying, and the length of the box body is combined by the standard section. In order to save the space, the dryer can be made into a multi-layer type.