Fuente: WIPO "dairy products" The utility model belongs to the field of dairy product production, and particularly relates to a dairy product sterilization device which comprises a box body, a cover plate is arranged at the top of the box body, through holes are formed in the top of the cover plate and the bottom of the box body, and a supporting plate is fixedly mounted between the inner sides of the box body; the heating and cooling assembly is installed on the box body, the cover plate and the supporting plate, and the heating and cooling assembly comprises a motor, a hollow pipe, a fixing sleeve, an adapter, a belt wheel, a cooling pipe and a stirring pipe. The device is reasonable in design, objects entering the hollow pipe are controlled and changed through the valve, uniform heating or uniform cooling of dairy products is achieved, the structure is simpler in design, the occupied area is smaller, the manufacturing cost is reduced, the practicability is higher, the external pipeline cannot rotate when the hollow pipe rotates through the arranged conversion head, and the service life of the dairy products is prolonged. The interference problem caused by the fact that an external pipeline is difficult to rotate is avoided, and normal operation of the structure is guaranteed.