The machine can use electric, gas, LPG, coal,biological particles, diesel and other energy heating. The working principle is that the air heated by the heat source in the hot air stove ,is blown by circulation fans into the inside of the drying cabinet body, so that the moisture of the product is evaporated under the heat. Evaporated under the action, the generated moist air discharged to the outside of the device with the exhaust pipe. The machine can continuously feed and make the material run smoothly. During the material conveying process, the gap is conveyed through the intermittent mesh belt to realize the turnover of the material and reach the homogeneity of the heated wind on all surfaces. It can connect with other equipment to achieve continuous operation.