Steam self-circulation equipment of paraffin removal vehicle

The utility model relates to the technical field of oil well treatment, and discloses a steam self-circulation device of a paraffin removal vehicle, which comprises a shell, a guide pipe is fixedly connected inside the shell, the bottom end of the guide pipe is detachably connected with an exhaust funnel, two connecting blocks are slidably connected to the lower side inside the shell, and the two connecting blocks are detachably connected with the exhaust funnel. A filter screen is fixedly connected to the bottom end of the connecting block, mounting grooves are formed in the left side and the right side of the interior of the shell, a rotating shaft is rotationally connected to the interior of the front end of the shell, pull ropes are fixedly connected to the left side and the right side of the exterior of the rotating shaft, and clamping blocks are fixedly connected to the rear ends of the pull ropes. According to the steam recovery device, through matched use of the connecting block, the filter screen and