Tail gas treating method

The present invention discloses a tail gas treating method. The treating method is conducted in a tail gas treating device. The device comprises a purification tower, a turbulent ball tower and a washing liquid storage tank. First spraying devices are arranged within the purification tower; tail gas absorption zones and air flow inlet zones where second spraying devices and second filling layers are alternately arranged are formed within the turbulent ball tower successively from top to bottom. The tail gas is subjected to a first contact with a first washing solution in the purification tower, and the air flow after the first contact is subjected to a second contact with a second washing solution in the turbulent ball tower. A first waste washing liquid after the first contact and a second waste washing liquid after the second contact are mixed into a mixed liquid in the washing liquid storage tank, and the mixed liquid can be recycled to be used again as the first washing solution and the second washing sol