Drainage structure for gas drainage pipeline

The drainage structure comprises a spherical collecting part connected to the middle of the pipeline, a filtering layer is arranged at the gas outlet end of the collecting part, the collecting part is filled with filling liquid, a drainage opening is formed in the position, at the bottom of the filling liquid, of the collecting part, and the drainage opening is communicated with the filtering layer. A floating block floating above the filling liquid is arranged in the collecting part, and a sealing block for sealing the water outlet is arranged below the floating block. And the gas drainage pipeline can be continuously drained. 本申请提出了一种用于瓦斯抽放管路的排水结构，所述排水结构包括连接于管路中部的球形收集部，所述收集部的出气端配置有过滤层，所述收集部内填充有填充液，所述填充液底部的所述收集部上开设排水口，所述收集部内配置有漂浮于所述填充液上方的浮块，所述浮块的下方配置有将所述排水口密封的密封块。能够对瓦斯抽放管路连续排水。