Rotational flow tower

The utility model provides a rotational flow tower which comprises a straight-through tank body and a spiral tank body, a first flue is arranged in the straight-through tank body, the first flue penetrates through the top of the straight-through tank body and is communicated with a second flue gas inlet of the spiral tank body, a second flue is arranged in the spiral tank body, and a spiral blade is arranged between the inner wall of the spiral tank body and the second flue. A plurality of spraying liquid inlets are uniformly formed in non-central positions of the tops of the straight-through tank body and the spiral tank body along the circumference; and each spraying liquid inlet is connected with a flange spraying pipe through a bolt. According to the cyclone tower provided by the utility model, most of tar and particulate matters in flue gas are subjected to primary spraying purification through the straight-through tank body, so that the content of the tar and the particulate matters in the flue gas ente