Combined metal wall with good moisture-proof effect

The utility model discloses a combined metal wall with a good moisture-proof effect, and belongs to the technical field of combined metal walls. The combined metal wall solves the problems that an existing combined metal wall is poor in moisture resistance in the using process, if a moisture-proof material is damaged, a user cannot replace the moisture-proof material conveniently, and therefore moisture-proof failure is caused. The metal wall comprises a metal wall body, damp-proof coatings are smeared on the two sides of the metal wall body, damp-proof cloth is arranged on the sides, away from the metal wall body, of the damp-proof coatings, and containing grooves are formed in the front side and the rear side of the top and the rear side of the bottom of the side, away from the metal wall body, of the damp-proof cloth. The metal wall body, the damp-proof coating, the damp-proof cloth, the containing groove, the power groove, the handle, the screw rod and the fixing block are arrangedand used in a matched mo