Cement plant kiln tail smoke colored smoke plume treatment system

The invention provides a cement plant kiln tail flue gas colored smoke plume treatment system, which comprises an absorption tower, a flue gas condenser, a demister, a smoke-air mixer and a chimney which are sequentially arranged in a flue gas flowing direction, and further comprises a rotary kiln, a rotary kiln air cooling cover, a dust remover and an air blower which are sequentially arranged ina hot air flowing direction, wherein the rotary kiln air cooling cover is arranged on the outer side of the rotary kiln and used for absorbing heat of a rotary kiln shell, hot air collected by the rotary kiln air cooling cover is subjected to dust removal through the dust remover and then sent to the smoke-air mixer through the air blower to be mixed with flue gas, and the outlet of the smoke-airmixer is connected with the bottom of the chimney, According to the invention, cement plant rotary kiln tail flue gas is desulfurized by an absorption tower and then is subjected to condensation dehumidification cooling treat