Steel bar rust removal structure for building construction

The utility model discloses a steel bar rust removal structure for building construction, which comprises a base and further comprises a dust removal mechanism for collecting rust and dust left by polishing; the device comprises a base, a machine box is arranged on the outer wall of the top of the base, conveying pipes are symmetrically inserted into the outer walls of the two sides of the machine box, the outer walls of the conveying pipes are sleeved with a mounting frame and a third gear through bearings, the outer wall of one side of the mounting frame is connected with three second gears through rotating shafts, and the outer walls of the three second gears are sleeved with the same gear ring. Steel brushes are connected between the two corresponding second gears on the left side and the right side, a power mechanism is further arranged in the machine box, and the gear rings and the third gears are engaged with the second gears. The steel bar rust removal structure for building construction has the effec