Tail gas pipeline structure convenient to clean

The utility model relates to the technical field of tail gas pipelines, and provides a tail gas pipeline structure convenient to clean, which comprises a second pipeline and a third pipeline, and further comprises a four-way pipe fitting and a breather pipe, the four-way pipe fitting comprises four joints, two adjacent joints are respectively and fixedly arranged on the second pipeline and the third pipeline, and the breather pipe is fixedly arranged on the second pipeline and the third pipeline. Blocking plates are fixedly arranged at the ends of the other two connectors. The breather pipe is fixedly arranged on the blocking plate located on the extension line of the third pipeline, and the outer diameter of the breather pipe is equal to the inner diameter of the connector; and a filtering hole is formed in one side, close to the second pipeline, of the ventilation pipe. According to the pipeline structure, the ventilation pipe is arranged, and the filtering holes are formed in the side, close to the second