Pollution -free well washing device

The utility model discloses a pollution -free well washing device, include: go up the reducer union, the outside of its upper end be used for with the duplex fitting is fixed, the hookup body, its upper end inboard with the lower extreme of going up the reducer union is fixed, is provided with the opening on its lateral wall, the lifting sub, its the upper end the outside with the lower extreme of the hookup body is fixed, the packer, its upper end inboard with the lower extreme of lifting sub is fixed, the upper part of the body, its upper end inboard with the lower extreme of packer is fixed, the lower part of the body, its the upper end the outside with the lower extreme of upper part of the body is connected, be formed with the portion of holding on the outer wall of the lower part of the body, be provided with the valve ball seat in it, down reducer union, its upper end inboard with the lower extreme of the lower part of the body is fixed, the outside of lower extreme be used for with the storage sand bucket is fixed, the center tube, its the upper end the outside with go up the inboard fixed of reducer union lower extreme, its lower extreme stretches into it is internal down. Pollution -free well washing device can cooperate long column stopper sand control oil -well pump to realize pollution -free well -flushing.