Sand removal pipe column and oil pipe assembly

The utility model provides a sand removal pipe column and an oil pipe assembly. The sand cleaning pipe column comprises a sand cleaning pipe column body, the inner pipe and the first valve body are fixedly connected together and used for moving relative to the outer pipe in the axial direction of the outer pipe. The pressing cap is sleeved outside the connecting body and is in threaded connectionwith the end part of the outer pipe; the inner pipe and the first valve body are only used for moving in the outer pipe; the connecting body is fixedly connected with the inner pipe so as to drive theinner pipe to move through the connecting body; the leather cup is sleeved outside the inner pipe; the leather cup is positioned in a space formed among the outer pipe, the inner pipe and the first valve body; the first valve cover and the first valve seat are sleeved with the first valve body, the first valve body, the first valve seat and the first valve cover are fixedly connected, the first valve cover is located betw