Acid mist emission reduction system for pickling production line

The invention relates to a pickling production line acid mist emission reduction system which comprises a pickling tank, a circulating tank, a pickling purification device and an acid mist condensation recovery device, an acid mist collection cover and an acid mist collection pipeline are arranged on the upper portion of the pickling tank, and the acid mist collection pipeline is connected with an acid mist inlet in the bottom of the acid mist condensation recovery device. A gas phase outlet in the top of the acid mist condensation recovery device is connected with the pickling purification device through a pipeline, an acid mist inlet in the bottom of the acid mist condensation recovery device is further connected with the circulation tank through a pipeline, and a height difference exists between the acid mist condensation recovery device and the circulation tank, so that condensed liquid acid can naturally flow into the circulation tank. According to the invention, a set of hydrochloric acid recovery syste