Waste salt resourceful treatment process and special equipment thereof

The invention discloses a waste salt resourceful treatment process and special equipment thereof. The waste salt resourceful treatment process comprises the following steps: separately adding waste salt which mainly comprises sodium chloride and sodium sulfate into saturated salt water of sodium chloride and sodium sulfate to continuously stir, filtering to obtain mother liquor from salt wash, anddrying separated-out sodium chloride and sodium sulfate solids; freezing mother liquor from salt wash, evaporating and crystallizing crystals, chemically removing impurities of frozen mother liquor,removing organic and inorganic impurity ions, performing organic separation on impurity-removal outlet water, utilizing the mother liquor inside a field, oxidizing produced water, performing nano-filtration salt separation on oxidizing produced water, returning nano-filtration concentrated water into a salt washing system, evaporating and drying nano-filtration produced water to obtain sodium chloride solid. A series of pr