The utility model discloses a gob-side entry retaining
deep hole top
cutting pressure relief blasting hole-clamping-free
stemming device which comprises a
stemming barrel and a
bakelite tamping bar, the edge of the outer bottom of the
stemming barrel is connected with a steel wire pull
rope, a stop pin is arranged on the
bakelite tamping bar to prevent the
bakelite tamping bar from falling into a blast hole, and the steel wire pull
rope penetrates through a stop pin hole. Then the stemming
barrel is fed into a blast hole needing to be filled, the bakelite tamping bar is pushed to push stemming into the blast hole and tamped, and after the operation is completed, the stemming barrel and the bakelite tamping bar are pulled out of the blast hole together by pulling the steel wire pull
rope, so that one-time stemming hole sealing work is completed. The gun head and the bakelite gun stick are treated through
chemical agents, the underground
flame-retardant and antistatic requirements are met, installation is convenient and fast, disassembly and adjustment are avoided, the cost is low, and the problem that in the using process of a traditional gun stick and a stemming barrel, continuous
butt joint needs to be conducted, and consequently the hole sealing work efficiency is low is solved.