Composite wall

The utility model relates to the technical field of buildings, and discloses a composite wall which comprises a main body, dust-proof coating plates are installed on six faces of the main body, a steel wire mesh is installed at one end of each dust-proof coating plate, a metal reinforcing piece is installed at the end, away from the dust-proof coating plates, of each steel wire mesh, and a sound insulation layer is installed at the end, away from the steel wire mesh, of each metal reinforcing piece. A heat preservation layer is installed at the end, away from the metal reinforcing piece, of the sound insulation layer, and a metal framework is installed at the end, away from the sound insulation layer, of the heat preservation layer. According to the composite wall body, the metal reinforcing pieces, the metal framework and the steel bars are used in cooperation with the filling materials, the strength of the wall body is enhanced, the compressive strength in the main body is improved, and then the service lif