GHG industrial rotary dryer with heating furnace, feed port, rotating cylinder, delivery pipe, dust collector and discharge port. Wet material is continuously sent to the drying cylinder by a conveyor. Heat air makes full contact with the material. Being delivered and scattered by the high-speed hot air, water in the wet material is evaporated. The material gets fully dried in the rotating cylinder. GHG dryer is widely used in industries like biomass fuel, wood pellet fuel, sawdust briquette, farming etc. The applicable materials are wood powder, wood shavings, sawdust, wood chips, straws, grass, etc