Pipeline filter with inner core convenient to replace

The utility model discloses a pipeline filter with an inner core convenient to replace. The pipeline comprises a pipeline body, a filtering inner core, bolts and nuts. A drain outlet is formed in thecenter of the bottom end of the pipeline main body; a bottom cover plate is arranged below the drain outlet; the bottom cover plate is connected with the bottom end of the pipeline main body; the filtering inner core is mounted in the pipeline main body; a circular plate is fixedly mounted on the top surface of the filter inner core, a mounting shaft is arranged in the center of the top surface ofthe circular plate, the mounting shaft is in threaded connection with the connecting hole, the mounting shaft is arranged in the center of the bottom surface of a top plate, the top plate is connected with the top end of the pipeline main body, and a bolt is fixedly mounted on the top surface of the pipeline main body. According to the pipeline filter convenient for replacing the inner core, thebolt is fixedly mounted on