Jacking fixed type discharging platform

The invention relates to a jacking fixed type discharging platform which comprises two supporting steel beams, one ends of the two supporting steel beams are fixed to a lower floor through two jacking assemblies respectively, the other ends of the two supporting steel beams are overhung outside the lower floor, a steel structure platform is fixed to the supporting steel beams, and first grooves are formed in the positions, corresponding to the jacking assemblies, of the tops of the supporting steel beams; a second groove is formed in the position, corresponding to the jacking assembly, of the bottom of the upper floor, the jacking assembly comprises a lower supporting rod, a jack and an upper supporting rod, the lower end of the lower supporting rod is embedded into the first groove, the upper end of the lower supporting rod is fixedly connected with a base of the jack, the lower end of the upper supporting rod is fixedly connected with a jacking piece of the jack, and the upper end of the upper supporting ro