Waste rock blocking device between light frames of working face of steep coal seam

The utility model discloses a waste rock blocking device between light frames of a working face of a steep coal seam, comprising a hydraulic support. The waste rock blocking device is characterized in that an upper subplate is fixedly arranged at the lower end of a top beam of the hydraulic support, an upper sliding mechanism is arranged at the lower end of the upper subplate, an upper sliding door is arranged at the lower end of the upper sliding mechanism, an upper hanging door is fixedly arranged at the right part of the lower end of the upper subplate, and the upper sliding door can move left and right; and a lower hanging door is fixedly arranged at the upper end of a base of the hydraulic support, a lower subplate is fixedly arranged on the base of the hydraulic support, a lower sliding mechanism is arranged at the upper end of the lower subplate, a lower sliding door is arranged at the upper end of the lower sliding mechanism, and the lower sliding door can move left and right. The waste rock blocking device can be adapted to the requirements of different mining heights of a full-mechanized mining face, and simultaneously can reliably provide safety guarantee for mining workers.