Horizontal well swirling flow sand washer

The utility model relates to a horizontal well swirling flow sand washer. When horizontal well common sand washing construction is carried out, sand washing liquid and sand are respectively located on upper and lower layers of a production casing under the action of gravity, so that construction liquid flows on the upper layer, cannot effectively take sand on the lower layer to migrate, and cannot effectively take sand to return to a shaft. The problems of low construction efficiency, huge water consumption, poor sand washing effect and the like exist, and a construction pipe string is easily buried by sand. The horizontal well swirling flow sand washer comprises a vector washing pipe and an isolation washing pipe, wherein the vector washing pipe and the isolation washing pipe are connected through an oil pipe coupling. The isolation washing pipe comprises oil pipe short connection and oil pipe couplings which are located on both ends of the oil pipe short connection. The isolation washing pipe is connected w