Multi-stage tea oil fine filtering device

The invention discloses a multi-stage tea oil fine filtering device, which comprises a filter box, a heat exchange pipe and an oil inlet pipe. The oil inlet pipe is connected with a spiral pipe, the spiral pipe sleeves outside the heat exchange pipe, circulating hot oil is introduced into the heat exchange pipe, the end of the spiral pipe is connected with a hot oil pipe, the hot oil pipe extendsinto an oil outlet hopper at the top of the filter box, a filter net is disposed directly below the oil outlet hopper, and the filter net comprises a first-stage filter net, a second-stage filter netand a three-stage filter net which are arranged from top to bottom. Both ends of the first-stage filter net, the second-stage filter net and the three-stage filter net are fixed on the side wall of the filter box by installation corners. The multi-stage tea oil fine filtering device has the beneficial effect that tea oil in the oil inlet pipe can be heated by the heat exchange pipe before filtration, the physicochemical pr