Wax oil treatment device and working method

The invention discloses a wax oil treatment device and working method. The device includes a wax oil storage tank, a liquid supply pump, a tubular filter, a nitrogen gas storage tank and a waste oil storage tank. The method includes filling, filtering, pressurizing and deslagging. On a principle of not changing the wax oil composition and aiming at defects and weaknesses existing in a conventional neutralized juice clarification treatment device, improvement and reinforcement are carried out; and through optimization of a treatment process of the conventional device, the whole wax oil treatment device achieves on-line cleaning, continuous filtration and totally-enclosed operation, has no need of external connection with a cleaning liquid, and has no wastewater discharge.