Vertical pipeline pump

The utility model discloses a vertical type pipeline pump, which relates to the technical field of vertical type pipeline pumps, and comprises a pump body, a water outlet, a water inlet, a bearing box body, an impeller, a pump cover, a mechanical seal, a main shaft, a motor support and a motor, an upper bearing installation structure is arranged above the bearing box body, a lower bearing installation structure is arranged below the bearing box body, and a lubricating oil cavity is formed in the bearing box body and located between the upper bearing installation structure and the lower bearing installation structure. The thin oil lubrication rolling bearing is adopted, media with the temperature larger than 120 DEG C can be conveyed, the thin oil lubrication structure is adopted, the pump operation rotating speed can be increased, and the oil lubrication structure can be used for lubrication of the thin oil lubrication rolling bearing and can be used for lubrication of the thin oil lubrication rolling bearing