Sliding type overhanging discharging platform protection structure

The utility model relates to the technical field of building construction, in particular to a sliding type overhanging discharging platform protection structure. The overhanging discharging platform comprises an overhanging discharging platform body and protection assemblies arranged on the two sides of the overhanging discharging platform body, the overhanging discharging platform body is fixedly connected with a building structure through I-shaped steel supports, and each protection assembly comprises supporting columns arranged at the two ends of the overhanging discharging platform body and an upper sliding way arranged between the two supporting columns. The lower end of the protective door is connected with the I-shaped steel support in a sliding mode through a lower sliding way, a sliding groove connected with the lower sliding way in a sliding mode is formed in the bottom of the protective door, and the lower sliding way is fixedly connected with the I-shaped steel support. The unloading platform is r