The invention discloses a pressing and air drying device for filter cloth of a paper making machine. The pressing and air drying device comprises a press roller fixing plate and two press rollers which are fixed on the press roller fixing plate and are tightened by tension springs; the periphery of each press roller is coated with a rubber layer; two air outlet pipes are arranged above the press rollers; oblique air outlet holes are separately formed in the upper parts and the lower parts of certain sides, which are close to each other, of the air outlet pipes; one end of each of the two air outlet pipes communicates with one end of a heating pipe, and the other end of the heating pipe communicates with an air duct of a fan; heating wires wind the heating pipe; the bottom of the fan is fixed on one side of the press roller fixing plate. According to the pressing and air drying device disclosed by the invention, a large amount of water on the filter cloth is evaporated out; the filter cloth becomes dry more thorough and facilitates next use.