Steel structure factory building overhung window structure

The utility model relates to the technical field of steel structure factory building overhanging window structures, and discloses a steel structure factory building overhanging window structure which comprises an overhanging window and two open windows connected to the overhanging window, the two open windows are symmetrically arranged, sliding grooves are formed in the positions, located at the lower ends of the inner sides of the overhanging window, of the two open windows, and supporting assemblies are reversely arranged in the sliding grooves. The two supporting assemblies are symmetrically arranged, each supporting assembly comprises a sliding block, and the sliding blocks are matched with the sliding grooves and slidably connected with the sliding grooves. One ends of the supporting rods are hinged to the sliding blocks, the other ends of the supporting rods are hinged to the mounting blocks through the rotating shafts, the sliding blocks are slidably connected with the sliding grooves, and the supporti