The utility model relates to a cleaning device for various steel sheet wall. Its characteristics are: including backup pad (24), fixed mounting has branch conduit (3) of n type in this backup pad (24), the left bottom air inlet and the right side bottom air inlet of this branch conduit (3) bottom communicate with first jamb duster shell (1) and second jamb duster shell respectively, the clean mechanism of first clean mechanism (5) and second installs respectively in this first jamb duster shell (1) and second jamb duster shell, in this branch conduit (3) middle gas outlet that is equipped with in top, this gas outlet is passed through the pipeline and is communicate with negative pressure dust collection box (4) and negative pressure pump in proper order. The utility model discloses well jamb duster shell is the conjugation relation with there being the type wall, can effectively avoid producing the raise dust. The solid fixed ring's of flexible axle central line is parallel with each section of wall, and the cover can realize having the type wall effectively to clean to whole at soft epaxial sweeping brush, and two sets of parallel existence of jamb duster can realize that the wall of great width cleans.