Deep hole pre-splitting directional blasting energy gathering pipe device of coal mine roof

The invention discloses a deep hole pre-splitting directional blasting energy gathering pipe device of a coal mine roof. The deep hole pre-splitting directional blasting energy gathering pipe device comprises energy gathering pipes, an energy gathering pipe connecting device, an energy gathering pipe positioning device and a detonating cable; the energy gathering pipes comprises the multiple firstenergy gathering pipes and the second energy gathering pipe at one end; the first energy gathering pipes and the second energy gathering pipe both comprise pipe bodies; two symmetrical grooves are formed in the outer side of each pipe body; a plurality of oppositely-penetrating positioning holes are formed in the upper and lower ends of the pipe bodies of the first energy gathering pipes and thesecond energy gathering pipe correspondingly; and a clamping groove is further formed in one end of the pipe body of the second energy gathering pipe. The two sides of the energy gathering pipes are grooved, the pipe walls are