Flue gas purification exhaust channel

The utility model discloses a flue gas purification exhaust channel. The device comprises a purification tower and a turbofan, a flue gas exhaust port is formed in the surface of the upper end of thepurification tower; a first connecting shell is fixedly connected to the surface of the flue gas exhaust port; the first connecting shell is fixedly connected to the upper end of the exhaust channel.The outer surface of the lower end of the exhaust channel is fixedly connected with a second connecting shell; the outer surface of the rear end of the second connecting shell is fixedly connected with a vibration reduction sleeve. The vibration reduction sleeve is made of special rubber. The vibration reduction sleeve is of a cylinder structure. The inner side surface of the annular cavity of thevibration reduction sleeve is fixedly connected with a rubber bent supporting piece. A connecting pipe head is fixedly connected to the outer surface of the damping sleeve, a filtering shell is arranged on the surface of the i