The utility model relates to a power generation facility technical field, saying more specifically, it relates to an electricity generation owner seals female dampproofing waste fitting discharging, and its technical scheme main points are including the sewage pipes that be used for get rid of humid air of intercommunication on the main mother of sealing, sewage pipes's communicating position is in and sets up the main top of sealing the disk insulator in the mother, sewage pipes's tip is provided with the blowoff valve, the last three -way valve that is provided with of sewage pipes, three -way valve connection sweeps the pipeline, the other end that sweeps the pipeline communicates on the main mother of sealing, the communicating position who sweeps the pipeline is in the below that sets up the disk insulator in the main mother of sealing, it is provided with the blow down valve on the pipeline to sweep, the main mother bottom of sealing is provided with the water -drain mast that is used for the effluent sewerage. This electricity generation owner seals female dampproofing waste fitting discharging has solved the electricity generation owner and has sealed female catchmenting and the problem of insulator dewfall.