Raw gas dust removal and tar lightening device

The utility model relates to a crude gas dedusting and tar lightening device, which comprises a cyclone separator, a turbulence agglomeration chamber and a granular bed filter deduster, the cyclone separator is connected with a coal pyrolyzing furnace, the upper end of the cyclone separator is provided with a pyrolyzed oil gas outlet, and the lower end of the cyclone separator is provided with a dust outlet; the front end of the turbulent flow agglomeration chamber is connected with a cyclone separator, n turbulent flow columns are arranged in the turbulent flow agglomeration chamber, and at least one group of splayed vortex sheets are arranged behind each turbulent flow column along the radial direction; the granular bed filter dust remover is connected with the turbulent flow agglomeration chamber and is filled with a semi-coke filter bed material, and an upgraded clean oil gas outlet is formed in the bottom end of the granular bed filter dust remover. According to the device disclosed by the utility model,