Oxygen conveying pipeline for sewage treatment aeration device

The invention relates to the technical field of water purification equipment and especially relates to an oxygen conveying pipeline, in particular to an oxygen conveying pipeline for a sewage treatment aerator. In the prior art, oxygen conveying is concentrated, so that the utilization rate is low, and a pipeline is liable to be blocked if a vent hole is formed in the pipeline. In the invention, the oxygen conveying pipeline for a sewage treatment aeration device includes a duct, wherein a plurality of vent holes are formed in the surface of the pipeline; a connector is arranged on each vent hole; each connector is in a circular truncated cone shape. The smaller end of the end surface of each connector is connected with the vent hole, while a filter screen is arranged at the larger end ofthe end face of each connector; a U-shaped filter tip is arranged outside each filter screen, the U-shaped filter tips are made of rubber materials, and protrusions formed by combining a plurality ofvalves are arranged at ope