Coal mine roof panel deep hole pre-splitting blasting method

The invention discloses a coal mine roof panel deep hole pre-splitting blasting method. The coal mine roof panel deep hole pre-splitting blasting method comprises a step of installing a plurality of energy-gathered tubes which are full of explosives inside a deep drill hole of a roof panel; and the step comprises the following steps of: (S1) installing a first energy-gathered tube; (S2) installingan energy-gathered tube connecting device; (S3) installing a next energy-gathered tube; (S4) repeating the step (S2) and the step (S3), and installing the other middle energy-gathered tubes; (S5) installing the last energy-gathered tube provided with a clamping slot, repeating the step (S2) and the step (S3), installing detonators and connecting detonating cords; and (S6) pushing the energy-gathered tube provided with the clamping slot to the bottom of the drill hole by using an energy-gathered tube orienting device. The invention provides a coal mine roof panel cutting method which can effectively solve the problem