Long-acting gas extraction method for pipeline-free fixed-point precise treatment of tectonic coal

The invention provides a pipeline-free fixed-point precise treatment gas long-acting extraction method for tectonic coal, which is an extraction method for carrying out fixed-point precise treatment on an abnormal gas occurrence area or a gas enrichment area by constructing a near coal seam roof directional drilling bifurcated drilling hole. The main branches of the drill holes are arranged on the roof rock section, so that the degree of hole collapse of the drill holes can be reduced, the stability of the structure of the rock holes can be utilized to replace an extraction pipeline, the branch drill holes are utilized to perform precise treatment, the influence of accumulated water in the holes is eliminated, and the method is suitable for coal types of different construction types (f value is smaller than 1). A main hole section is constructed on a top plate layer above a coal seam so as to ensure the upward characteristic of the main hole section and the downward characteristic of a branch drill hole, and