The invention belongs to the technical field of tail gas purification, and particularly relates to a rubber milling tail gas purifying system. The rubber milling tail gas purifying system comprises atank body, an oil removing unit, a dust removing unit and a pressure gauge, wherein the tank body is rectangular; a gas inlet is formed in the upper part of the right side of the tank body; a gas outlet is formed in the left side of the tank body; the tank body is provided with the pressure gauge; the pressure gauge is used for detecting pressure in the tank body; the oil removing unit is arrangedin a position, which is close to the right side, in the tank body; the tank body is divided into left and right chambers which are independent from each other by the oil removing unit; the oil removing unit is used for filtering emulsified oil in filtered tail gas; the dust removing unit is located in the left chamber and is used for filtering dust in the tail gas. According to the rubber millingtail gas purifying system disclosed by the invention, the emulsified oil and the dust in milling tail gas can be effectively filtered through interworking between the oil removing unit and the dust removing unit; meanwhile, the structure is simple, and washing and overhauling are convenient.