The utility model provides a tertiary filtration formula sand setting jar doublestage spiral sand removing device, including a jar body, level filtering baffle, second grade filtering baffle and tertiary filtering baffle, level filtering baffle, second grade filtering baffle and tertiary filtering baffle set gradually backward in jar body bottom in the past, tank bottoms between jar body front end and the level filtering baffle is equipped with the one -level funnel, the one -level funnel be connected with down one -level screw conveyer between export and tank bottoms, jar body bottom between level filtering baffle and the second grade filtering baffle is equipped with the second grade funnel, the second grade funnel be connected with down the second -order helical conveyer between export and tank bottoms, the internal feed liquor pipe that is equipped with of jar, the liquid outlet of feed liquor pipe be located the one -level funnel directly over, the rear end tank bottoms of the jar body is equipped with the recovery pump. This device can thoroughly separate solid in the liquid fast, retrieves liquid and solid fast, and retaining and pollution scheduling problem, broad prospect dig pit with liquid and construction cost, solution scene to reduce the construction.