Coal mine gangue filling combined tamping mechanism

The utility model discloses a coal mine gangue filling combined tamping mechanism. The coal mine gangue filling combined tamping mechanism comprises a top beam, a base and a plurality of lifting oil cylinders arranged between the top beam and the base. The two ends of the lifting oil cylinder are rotationally installed on the top beam and the base respectively. A lower tamping mechanism is arranged at one end of the base, and an upper tamping mechanism is arranged at one end of the top beam. Through the cooperation of the upper tamping mechanism and the lower tamping mechanism, the working blind area of the lower tamping mechanism is eliminated, the upper tamping mechanism and the lower tamping mechanism work together, full-section tamping is achieved, the tamping effect is better, ganguefilling and combined tamping are tighter, the filling rate is increased, and ground surface subsidence reduction and working surface safety management are facilitated; and by arranging the upper tamping mechanism, the elongat