Environment-friendly wall surface dust-free polishing dust collector

The utility model discloses an environment-friendly wall surface dust-free polishing vacuum cleaner which comprises a millstone, an air suction cover is arranged on the left side of the millstone, theair suction cover is made of sound insulation materials and plays a role in reducing noise during working, a hairbrush layer is arranged at the opening of the air suction cover, and the hairbrush layer is arranged at the ring opening of the air suction cover, so that dust splashing can be effectively prevented, and the dust flying speed is reduced. The first guide pipe and the second guide pipe are arranged on the air suction cover and communicated with the air guide bin, the motor is arranged in the air guide bin, the first control valve and the third control valve are closed, the second control valve and the fourth control valve are opened, dry dust enters the filter bin through the dust guide pipe to be filtered, and when the wet wall is ground, the first control valve and the third control valve are closed. T