Dust collection erasing board and using method

The invention discloses a dust collection erasing board and a using method and belongs to the field of teaching facilities. The dust collection erasing board and the using method are designed for reducing dust produced by blackboard erasing in a classroom or a training room. The dust collection erasing board is composed of an erasing board, a filter board, a negative pressure generator, a dust collection box, a blackboard eraser shell, a handle, a transmission shaft and a motor. The erasing board is connected with the motor through the transmission shaft. The filter board is connected with the blackboard eraser shell. The negative pressure generator, the dust collection box and the motor are arranged in the blackboard eraser shell. The negative pressure generator is in sealed connection with the dust collection box at the opening of the dust collection box. One end of the transmission shaft is connected with the motor, and the other end of the transmission shaft penetrates through the filter board to be conne