Dust-collection blackboard eraser

The utility model belongs to teaching tools, and particularly relates to a dust-collection blackboard eraser. The dust-collection blackboard eraser is characterized in that a motor bin is symmetrically arranged inside a shell and connected with a battery bin and a dust collection bin, a motor is arranged inside the motor bin, the front end of the motor is connected with a fan blade, and a dry battery is arranged inside the battery bin; the shell is provided with a handle, and a control switch of the motor is arranged on the handle; dust collection holes are evenly formed in the periphery, on one side provided with sponge, of the shell. The dust-collection blackboard eraser has the advantages of being novel in structure, reasonable in structure and convenient to use, sucking chalk dust by means of negative pressure produced by the fan blade, reducing the amount of the chalk dust in air, and effectively protecting body health of teachers and students.