Purification method of two-alkali salty mud

The invention belongs to the technical field of environmental protection and solid waste resource utilization, and particularly relates to a two-alkali method salty mud purification method. The method comprises the following steps: stirring two-alkali salt mud and hydrochloric acid at normal temperature for reaction, performing primary electric flocculation treatment on filtrate of a reaction system, re-mixing filtrate filtered by a ceramic membrane with the salt mud after treatment, performing secondary electric flocculation treatment, performing secondary electric flocculation treatment on the reaction system to obtain filter residues, and dehydrating and drying the filter residues to obtain a salt mud finished product. According to the method, the impurities in the two-alkali-method salty mud are removed, the impurity removal process is completed by utilizing beneficial components of the salty mud, impurity removal and sedimentation of the salty mud are achieved without adding any flocculating agent, and i