With double-base and double-side synchronous belt driving, two pairs rubber rolls work simultaneously. It is characterized by high throughput, small floor space, no oil pollution and noise. The feeding gate is driven by an air cylinder, and it is automatically controlled through a inductive type level indicator. It can process cleaned paddy and paddy returns to husk separately in technology. When processing paddy returns to husker, it is possible to reduce the pressure between rolls and lower the broken brown rice content, so that the white rice yield can be increased.