The utility model relates to pipeline maintenance and repair technical field, concretely discloses a kind of automatic extraction maintenance device of water in
natural gas pipeline, including the shaft seat of being provided with
flange, further including the leather bowl installed to the outside of
flange, lip is opened in leather bowl side edge, and lip divides leather bowl side edge to form front lip and back lip, multiple guide members are rotationally arranged in lip. The utility model actively meets the
sewage accumulated in front of
natural gas pipeline through front lip, and the space of lip realizes the storage obstruction in front of back lip, so that
sewage is not easy to penetrate from back lip to rear leather bowl, improve the use effect of entire
pipe cleaner, by adjusting the roller deflection in the axis direction of leather bowl side edge, so that multiple rollers on leather bowl roll along one spiral direction, facilitate the spiral progression of
pipe cleaner in
natural gas pipeline, realize the change of leather bowl side edge direction, avoid the positioning of leather bowl side edge in some place always buried in
sewage operation, and further protect the sealing of
pipe cleaner.