Vacuum process exhaust pipe

The utility model relates to the field of exhaust pipes, in particular to a vacuum process exhaust pipe. Comprising two pipe bodies, flange plates are fixedly connected to the ends, away from each other, of the two pipe bodies, adjusting structures are arranged on the inner walls of the pipe bodies and comprise connecting rings, the outer walls of the connecting rings are rotationally connected with the inner walls of the pipe bodies, and two partition plates are fixedly connected to one sides of the connecting rings; a pressing rod penetrates through the side face of the partition plate in a threaded mode, a plurality of groove holes are formed in the side, close to the partition plate, of the connecting ring, and protruding columns are slidably connected to the inner walls of the groove holes. The exhaust pipe for the vacuum process has the advantages that large-particle substances in waste gas exhausted from the pipe body can be filtered by the filter screen, so that the large-particle substances in harmfu