The utility model provides a condensation knockout tower for oiliness steam is handled, includes the tower body, going up in the tower body in, down position punishment do not be provided with silk screen demister, column plate, oil -water separation structure parts, open at the tower body top has noncondensable gas export, has opened cooling water inlet, oiliness steam inlet on the tower body at the upper and lower both ends of column plate respectively, it has oil export, condensate outlet to open on the tower body that the terminal pair was answered about the oil -water separation structure part. The utility model discloses a structure make oiliness steam and recirculated cooling water in the tower body through a set of or how many organize column plate direct contact, become oily sewage with the direct condensation of oiliness steam, the contact is abundant, the condensation is effectual, the recirculated cooling water volume that consumes is lacked. The oil -water separation structure part that the tower body hypomere set up makes the oily sewage after the condensation accomplish water oil separating in the tower, but the outer defeated hot water of water retrieval and utilization of isolating or conduct, high -quality oil refining industrial chemicals can be regarded as to the light oil of isolating, and the working costs can significantly reduce.