Convenient-to-clean chalk dust receiving groove for blackboard

The utility model relates to teaching aids, in particular to a convenient-to-clean chalk dust receiving groove for a blackboard. The chalk dust receiving groove comprises a supporting plate (2) and is characterized in that a dust removing device is mounted on the supporting plate (2); the dust removing device comprises rotating wheels (1), a conveyor belt (3), a rocking handle (4) and a dust receiving box (5), wherein the rotating wheels (1) are respectively fixed at two ends of the supporting plate (2) and are connected with the conveyor belt (3); the rocking handle (4) is fixed on the rotating wheel (1) at one end of the supporting plate (2), and the dust receiving box (5) is hung under the rotating wheel (1) at the other end of the supporting plate (2). The utility model has the benefits that the convenient-to-clean chalk dust receiving groove for a blackboard has a simple structure, is convenient to operate and is good for people's health.