The utility model discloses a phosphoric acid extractor. The phosphoric acid extractor comprises a motor (1), a rotating shaft (2), a working chamber (3), a feed port (4), a discharge port (5), a stator (8) and a rotor (9), wherein the motor (1) is connected with the working chamber (3) through the rotating shaft (2); the feed port (4) is positioned on a side surface of the working chamber (3); the discharge port (5) is positioned on the top part of the working chamber (3); a multistage stator (8) is fixedly arranged on an inner wall of the working chamber (3); a multistage rotor (9) is fixedly arranged on the rotating shaft (2) in the working chamber (3); the stator (8) and the rotor (9) are matched with each other; and multiple rows of teeth which are annularly distributed are arranged on end faces of the stator (8) and the rotor (9). The phosphoric acid extractor is characterized in that: the tooth form of the stator (8) is of a straight tooth type, and the tooth form of the rotor (9) is of a skewed tooth type. The phosphoric acid extractor disclosed by the utility model has the characteristics of improving shearing force and avoiding pulse phenomena.