The utility model relates to a combined type oil drainage device for a horizontal well and a pipe column. The combined type oil drainage device for the horizontal well comprises a shear type oil drainage device arranged on a straight well section of the horizontal well and an impact oil drainage device arranged on a horizontal section of the horizontal well. The shear type oil drainage device comprises a shear mechanism and an oil drainage mechanism. The shear mechanism comprises a first body provided with a first oil drainage hole and a sliding sleeve which is arranged on the first body through a shear nail and is capable of blocking the first oil drainage hole. The oil drainage mechanism comprises a cone and a slip arranged outside the cone in a sleeving mode, wherein the slip can slide relative to the cone and expand in the radial direction to be in contact with the sliding sleeve. The impact oil drainage device comprises a second body provided with a second oil drainage hole and an impact pin capable of being arranged in the second oil drainage hole in a penetrating mode. The impact pin is provided with an impact part extending in the second body. By means of the combined type oil drainage device with the structure, the combined type oil drainage device is simple in structure, low in failure rate and high in oil drainage success rate, the combined type oil drainage device does not conflict with other tools in a shaft, and well washing, movable liquid level testing, pump touching and the like are not influenced.