Anti-collapse hole gas drainage pipe and installation method thereof

The invention discloses an anti-collapse hole gas drainage pipe. According to the main points of the technical scheme of the anti-collapse hole gas drainage pipe, the anti-collapse hole gas drainage pipe comprises a pipe body. The cross section of the pipe body is in a circular arc shape. The outer side wall of the pipe body is provided with a plurality of support pieces used for blocking coal bed collapse. The anti-collapse hole gas drainage pipe provided by the invention can effectively avoid collapse of a gas drainage hole, and gas drainage from a coal bed is not hindered. The other purpose of the invention is to provide an installation method of the drainage pipe. 本发明公开了种防塌孔瓦斯抽放管，其技术方案的要点是：包括管身，所述管身的横断面为圆弧形，所述管身外侧壁上设有多个用于阻挡煤层塌陷的支撑片。本发明提供种防塌孔瓦斯抽放管，能够有效避免瓦斯抽采孔垮塌、又不妨碍从煤层中抽采瓦斯。本发明的另目的是提供种抽放管的安装方法。