Coal bed gas multi-branch horizontal well group

The coal bed gas multi-branch horizontal well group comprises a drainage and mining vertical well and a multi-branch horizontal well group body, and the multi-branch horizontal well group body comprises a horizontal channel connected with the drainage and mining vertical well, a plurality of main branch wells connected with the horizontal channel and branch wells arranged on the main branch wells; the multiple branch wells are symmetrically arranged, and the opening directions of the branch wells face one side of the horizontal channel. The multiple branch wells share one drainage and mining vertical well, drainage is conducted through one horizontal channel, the target spot position is easy to confirm, the connecting difficulty of the main branch well and the drainage and mining vertical well is low, the time cost and the construction cost are greatly reduced, the workload is reduced, and the efficiency is improved. 本发明一种煤层气多分支水平井群，包括排采直井和多分支水平井群，所述多分支水平井群包括与所述排采直井连接的水平通道、连接所述水平通道的多个主支井、设置于所述主支井上的分支井；所述分支井对称