The utility model discloses a flocculating agent stirred tank, including the cell body main part, the cell body main part is fixed with sealed lid, the support is installed in the cell body main partoutside, it is fixed that the support downside passes through the bottom plate, the sealed side of covering is fixed with motor and air -blower from a dextrad left side in proper order, the flocculating agent input tube is installed in sealed lid left side, the motor downside is connected with the stirring roller, the inside bottom of cell body main part is provided with the air nozzle, the ore pulp input tube has been placeed to the sealed side right -hand member of covering, and the gas -supply pipe has been laid on cell body main part right side, be provided with the elbow behind the gas -supply pipe entering cell body main part bottom, it is fixed that the air nozzle passes through fixing bolt, threaded hole is seted up at the air nozzle middle part, this kind of flocculating agent stirred tank, and convenient operation, the operation is reliable, and groove structure is simple, through upper portion agitating unit and lower part venting device's setting, has improved the stirringefficiency of installing, has guaranteed the intensive mixing of flocculating agent with the ore pulp, has fine popularization nature.