Blackboard eraser

The utility model discloses a blackboard eraser, which can reduce the dust pollution and belongs to the stationery. The box body provided with an erasing plate is screwed with a box cover, and one end of the box body is provided with a dust collecting chamber. The middle part of the erasing plate and the inner surface of both sides are all provided with a concave groove, and the erasing plate is equipped with two slotted holes. Two brush hair rollers provided with the brush hair are respectively arranged in two slotted holes, and both ends of the two brush hair rollers are all provided with end axles and all penetrate into the axle holes arranged in both ends of the box body. The middle part of the erasing plate is fixed with an erasing surface being lower than the height of the brush hair, the box body is provided with two dust pulling plates near the brush hair, and both ends of the dust pulling plates is integrated with both ends of the box body. The utility model has the simple structure and is easy for application.