Indirect liquefaction coal-based Fischer-Tropsch synthesis water separation and purification processing system

The utility model discloses an indirect liquefaction coal-based Fischer-Tropsch synthesis water separation and purification processing system which comprises a filter device, a primary oil-water separation device, a secondary oil-water separation device, a neutralization stirring reaction tank, an alcohol knockout tower, a mixed alcohol tower top air cooler, a tower top backflow tank, a dealcoholized synthetic water reboiler, a dealcoholized synthetic water cooler, a membrane separation device and a primary mixed alcohol storage tank. The indirect liquefaction coal-based Fischer-Tropsch synthesis water separation and purification processing system has the advantages that by means of the filter, oil removing, neutralization, alcohol separation, membrane separation, mixed alcohol dehydration separation and other Fischer-Tropsch synthesis water processing technologies, the device stably and reliably runs, mixed alcohol in Fischer-Tropsch synthesis water is extracted, the processed Fischer-Tropsch synthesis water meets the requirements of other devices for water (such as circulated water and boiler water), and therefore cyclic utilization of synthesis water is achieved.