Dust removing blackboard

The utility model discloses a dust eliminating blackboard, containing a supporting rack, a roll type writing surface arranged on the supporting rack, a supporting device arranged to support the roll type writing surface on the supporting rack, a writing surface rotating device fixed on the supporting rack and arranged inside the roll type writing surface, a writing surface erasing and dust eliminating device fixed on the supporting rack and arranged on the outer of the two sides of the roll type writing surface, thereby, during application, in particular, in the middle and elementary schools, the labor strength of teachers and students can be greatly reduced without pollution to the environment, so as to reduce incidence of the pulmonary disease, therefore, the teaching environment can be improved, and the teaching quality can be enhanced.