Device for removing dust and impurities from grains

The utility model provides a device for removing dust and impurities from grains. The device comprises a machine body, a feeding mechanism and a dust collection mechanism, the machine body comprises amounting plate, the mounting plate is provided with a discharging pipe, and the discharging pipe is provided with at least one connecting pipe; the feeding mechanism is rotatably arranged on the mounting plate and located above the discharging pipe, a baffle is arranged in the middle of the feeding mechanism, a discharging hole is formed in the baffle, and a cleaning brush is arranged on the inner wall of the bottom of the feeding mechanism; the dust collection mechanism is mounted on the connecting pipe; the dust collection mechanism comprises a pipeline, a coarse filter screen, an exhaust fan and a fine filter screen are sequentially arranged outwards from the mounting surface; a first slag outlet and a second slag outlet are sequentially formed in the bottom of the pipeline, an air outlet is formed in the tail