Emergency oil pipe hanging tool for horizontal underwater Christmas tree

The utility model discloses an emergency oil pipe hanging tool for a horizontal underwater Christmas tree. According to the emergency oil pipe hanging tool, the upper portion of a releasing nipple is provided with drill rod threads, and the lower portion of the releasing nipple is connected with the upper portion of a hanging joint through trapezoid threads; the lower portion of the hanging joint is connected with the upper portion of a conversion nipple through trapezoid threads; the lower portion of the conversion nipple is connected with the upper portion of a bearing joint through drill rod threads; the lower portion of the bearing joint is connected with the upper portion of a double-edge nipple, and the lower portion of the double-edge nipple is connected with the upper portion of a rotation-preventing joint through drill rod threads; a rotation-preventing key is welded to the outer circumference of the rotation-preventing joint, and the lower portion of the rotation-preventing joint is connected with t