Coal mine roof cutting entry retaining energy gathering device

The invention relates to a coal mine roof cutting entry retaining energy gathering device which comprises an energy gathering pipe and an energy gathering cover arranged at the end of the energy gathering pipe. The connecting piece is used for connecting the two adjacent energy gathering pipes, and after the two adjacent energy gathering pipes are connected through the connecting piece, the two adjacent energy gathering pipes can rotate relatively; the positioning and fixing structure is located on the outer side of the energy-gathering pipe, when the energy-gathering pipe is plugged into a blast hole, under the action of the positioning and fixing structure, the positioning and fixing structure makes contact with the blast hole to prevent the energy-gathering pipe from sliding out outwards, under the action of the connecting piece and the positioning and fixing structure, the explosive, the energy-gathering cover, the connecting piece and the positioning and fixing structure can be assembled on the outer sid