Floor slab descending hanging formwork used during aluminum alloy formwork construction

The utility model relates to a floor descending hanging formwork for aluminum alloy formwork construction, which comprises four side formworks, and the four side formworks are detachably connected end to end to form a rectangular frame structure. Each side template comprises a first plate section and a second plate section which is vertically and fixedly connected with the first plate section, a first flange which extends into the rectangular frame structure is vertically arranged at the bottom of the first plate section, the first flange forms a connecting part at the corner where the first plate section is connected with the second plate section, and the connecting part is fixedly connected with the first plate section and the second plate section; a vertically through connecting hole is formed in the connecting part; the connecting pieces are used for being arranged between the side formworks and the aluminum formwork top plate so that the side formworks can be fixed to the upper portion of the aluminum fo