Draining device

The utility model relates to a draining device, it includes: gas -liquid separation mechanism, gas -liquid separation mechanism include helical coiled passage and with separation entry and separate outlet that helical coiled passage is linked together, separation entry with separate outlet separates each other to and combination mechanism, combine the mechanism to include first passageway and thesecond channel that extends in vertical orientation, first passageway with the second channel separates just each other the second channel for first passageway setting is in the outside, first passageway with the lower extreme of second channel respectively with the separate outlet intercommunication, combine the mechanism still include in vertical orientation with the spaced apart intercommunication passageway of separate outlet, first passageway with the second channel passes through communicate the passageway and communicate. This device can be discharged the liquid among the gas -liquid mixture in the well, improv