JT serial oil purifying machines for turbine oil can be used for purifying the turbine oil of generating set and transformer oil. They can be used to deal with hydraulic pressure oil that is widely used in metallurgical industry, petroleum industry, chemical industry, mine industry, railway, aviation and spaceflight industry, ship and vessel industry, machinery industry and so on. It can be used to purify the machinery low-viscosity lubricating oil. This kind of machine can efficiently dehydrate the emulsified oil that has been seriously polluted by water. And the vapor, acid matter, saponin, gluey color matter and mechanical impurities can be eliminated from the polluted emulsified oil as well. The emulsified oil after purification this way can become tranquil and clean. Thus, it proves quite a success to solve the problem as to water elimination and oil purification for generating set that has been very troublesome before. This machine can be used not only for dehydration, emulsion breaking, filtering and purification, but also for on-line operation by series connection. It can be used to remove the solid impurities from the pipes of generating set and devices at any time when necessary according to the second need of the generating set.