Building composite wall with metal veneer

The utility model provides a building composite wall with a metal veneer, which comprises a three-dimensional light steel keel framework, a heat insulation filling layer and surface layers on two sides, the three-dimensional light steel keel framework comprises scaling ladder-shaped H-shaped light steel keels which are vertically arranged at intervals, and the H-shaped light steel keels are connected by transverse connecting steel bars; the surface layer is assembled and connected metal veneers, the metal veneers are connected with the three-dimensional light steel keel framework through mounting brackets, mounting parts which are bent at right angles and then extend are respectively arranged at the upper edge and the lower edge of each metal veneer, and the metal veneers are inserted and connected together through the mounting parts. And the heat preservation and insulation filling layer is poured and filled between the two opposite metal veneers and is connected with the metal veneers. The composite board i