Comprehensive purification device for ammonia-containing tail gas

The comprehensive purification device comprises a water washing tower, an ammonia-containing tail gas port is formed in the lower end of the water washing tower, a water washing port is formed in the upper end of the water washing tower, the top end of the water washing tower is communicated with a water washing tail gas port in the lower end of a pickling tower, an acid washing port and a desalted water port are formed in the upper end of the pickling tower, and the desalted water port is located above the acid washing port. A tail gas discharge port is formed in the top end of the pickling tower. The ammonia-containing tail gas purification device has the advantages that the ammonia-containing tail gas produced by sodium carbonate is purified by adopting the water washing and acid pickling comprehensive purification device, so that the ammonia content in the tail gas can be reduced to be below 50mg/Nm < 3 >; the consumption of washing water is saved, and the limitation that the consumption of tail gas washi