Series of JT automatic Collecting-Dehydration Oil Purifying equipment is designed to dehydrate the oil by use of filer assemblies and dehydration-filtering elements, which are separately made of hydrophilic and hydrophobic synthetic material. The plant can collect the free and emulsification water to become large drips to subside and drain them expediently. The plant also can demulsifydehydrate and filter exactly. So they could filter water and impurities in turbine oil or lubrication on-line, especially fit to deal with leaked equipment.