Coal activated carbon tar recovery system of vertical internally heated retort

The utility model relates to a coal activated carbon tar recovery system of a vertical internally heated retort. The coal activated carbon tar recovery system comprises a Venturi tower, a cyclone oil-trap, an ammonia water-tar mixing tank and a tar tank, wherein the Venturi tower is communicated with the retort through manifolds; the Venturi tower and the cyclone oil-trap are communicated with the ammonia water-tar mixing tank respectively; and the ammonia water-tar mixing tank is communicated with the tar tank. The coal activated carbon tar recovery system can effectively recycle tar in tail gas produced after raw coal is carbonized, so that not only the tail gas is purified, but also good economic benefits can be generated; taking furnace profile with monomer of 50,000 tons for example, 200 tons of raw coal is used every day, 2 tons of tar can be recycled, and earnings of 8000 yuan can be obtained as per the present price of 4000 yuan per ton of coal tar.