The invention provides a rice huller. The rice huller comprises anti-skid foot pads, supporting legs, a machine head body, a fast roller wheel, a fast roller shaft, a slow roller plane wheel, a slow roller shaft capable of moving in an arc-shaped manner, an axillary wheel, an auxiliary shaft, a triangle belt, a feeding cover, a rice dust anti-splashing adsorption treatment machine used in a rice hulling process, a rice impurity and debris filtering and adsorption hopper structure used before rice hulling, a dust fine impurity ultimate filter screen leading-out plate structure used after rice hulling and a belt tightness adjustable power machine, wherein the anti-skid foot pads are horizontally glued to the bottoms of the supporting legs. By arranging a dust collecting motor, a bottom sealing guide barrel, fan blades, a leading-out pipe, an impurity collecting bag, an anti-splashing cover and a fixed cover, a large amount of dust occurs when rice enters, and the fan blades are driven bythe dust collecting motor to rotate at the moment and cause dust and impurities to enter the interior of the bottom sealing guide barrel through the anti-splashing cover, finally the dust and impurities are led out by the leading-out pipe to enter interior of the impurity collecting bag for storage, thus, the dust can be prevented from polluting environments, the rice is hulled cleanly, and the problem that the dust is easily generated during rice hulling is solved.