Low-dust grinding machine

The utility model relates to the technical field of machining, and discloses a low-dust grinding machine which comprises a box body mechanism. According to the low-dust grinding machine, the effects that internal dust is easy to clean and different machines are convenient to clamp are achieved, clamping grooves are fixedly formed in the positions, close to the upper end face, of the two sides of a movable block, so that two sliding blocks are arranged in the two clamping grooves in a sliding mode, and a scraping plate is fixedly arranged between the two sliding blocks; a brush fixedly arranged on the lower end face of a scraping plate is driven by a sliding block to move, so that the effect of easily cleaning internal dust is achieved, two grooves are fixedly formed in a moving block, a gear is fixedly arranged on the rear end face of a rotating button, and a rack connected in an engaged mode moves in the grooves by rotating the gear; and a stopping block is fixedly arranged on the upper end face of the rack,