Fischer-Tropsch wax separation system with waste heat recovery function

The utility model discloses a Fischer-Tropsch wax separation system with a waste heat recovery function, which comprises a raw material preheater, a film evaporator, a first-stage molecular distiller, a second-stage molecular distiller, a third-stage molecular distiller, a heat energy recoverer and a filtered wax stirring tank which are connected in sequence, and the heat conduction oil circulation loop is composed of a heat conduction oil storage tank, all stages of condensers, a heat energy recoverer, a heat conduction oil electric heater, all stages of evaporators/distillers, a raw material preheater and the heat conduction oil storage tank. According to the Fischer-Tropsch wax separation device, Fischer-Tropsch wax raw materials are subjected to four-stage distillation separation through the evaporators/molecular distillers which are connected in series in multiple stages, and the Fischer-Tropsch wax separation refinement degree is high; the heat conduction oil circulation loop is arranged, the whole devi