Steel bar rust removal device for building construction

The invention discloses a steel bar rust removal device for building construction, which comprises a box body, a driving mechanism, a rust removal mechanism and a conveying mechanism, wherein a firstadjusting assembly is arranged in the rust removal mechanism, a second adjusting assembly is arranged in the driving mechanism, and by arranging the driving mechanism, steel bars are polished back andforth, so that rust on the steel bar is thoroughly removed. The steel bar rust removal device has the advantages of good polishing effect and high rust removal efficiency. By arranging the first adjusting assembly, an air cylinder drives a telescopic rod to stretch out and draw back, so that the distance between an upper dust removal sleeve and a lower dust removal sleeve is adjusted, steel barsof different specifications and sizes are polished, and the practicability of the device is improved; and by arranging the second adjusting assembly, a threaded rod is rotated to drive a driven rollerin a roller sleeve to move