Mine rock mass borehole multi-section type gas extraction method

The invention discloses a mine rock mass borehole multi-section type gas extraction method. The problem that in the prior art, the borehole sealing effect is poor is solved, and the advantages of being good in sealing effect and easy to operate are achieved. According to the scheme, the method comprises the steps that a mine rock mass drilling multi-section type gas extraction testing probe is adopted, wherein the testing probe comprises at least three first sealing units and a second sealing unit, wherein two first sealing units are arranged at the two ends respectively, the first sealing unit at the head end is connected with a cone head, two adjacent first sealing units between the middle first sealing unit and the first sealing unit at the head end are connected through a collecting pipe, a plurality of second holes with one-way sealing parts are formed in the side wall of the collecting pipe, the second sealing unit is arranged between the first sealing unit at the tail and the middle first sealing unit,