Secondary paint supplementation device for well-drilling petroleum transmission pipeline

The utility model relates to a secondary paint supplementation device for a well-drilling petroleum transmission pipeline. The secondary paint supplementation device comprises a backpack type electric atomizer, wherein a bulge is arranged on the rear surface of the backpack type electric atomizer, a turning wall is hinged with the bulge through a first bolt, the other end of the turning wall is hinged with a connecting rod through a second bolt, and the other end of the connecting rod is fixedly connected with a semi-cylindrical paint spraying shell; the paint spraying shell is of a hollow structure, a plurality of paint spraying holes are formed in the inner surface of the paint spraying shell, an atomizing pipe of the backpack type electric atomizer is communicated with the paint spraying shell, and the radian of the paint spraying shell is matched with that of the petroleum transmission pipeline; the bottom surface of the backpack type electric atomizer is fixedly connected with a base, a plurality of guiding wheels are arranged on the base, and pushing handles are arranged on the front surface of the backpack type electric atomizer. According to the secondary paint supplementation device, the paint supplementation of the sunny side of a damaged pipeline can be rapidly finished, and after the paint supplementation is finished, the paint supplementation of the dark side can be manually carried out, so that the paint supplementation speed is superior to that of a pure manual paint supplementation manner.