Permeable reaction system suitable for ion type rare earth mining area groundwater pollution remediation

The utility model discloses a permeable reaction system suitable for ion type rare earth mining area groundwater pollution remediation. The permeable reaction system comprises a water insulation structure and a permeable reaction wall, the permeable reactive barrier is sequentially provided with a first transition area, a nitrification area, a second transition area, a denitrification area, a third transition area, an adsorption area and a fourth transition area in an overlapped mode in the water flow direction, and the left side, the right side and the bottom of the permeable reactive barrier are surrounded by the water insulation structure to form a U-shaped anti-seepage enclosure bulkhead. The bottom edge of one side of the anti-seepage enclosure bulkhead in the water inlet direction deeply extends relative to the impervious layer to form a water diversion bottom wall used for guiding deep underground water, and due to the design of the water diversion bottom wall, shallow underground water can be improved