The utility model relates to a reaction kettle, including the reaction kettle body, vertical (mixing) shaft, the inlet pipe, vertical (mixing) shaft is coaxial with the reaction kettle body, and stretch into inside the reaction kettle body, its one end and connecting rod one end fixed connection that stretches into the reaction kettle body, the connecting rod becomes a constant angle degree with the (mixing) shaft, the other end and the first motor fixed connection of connecting rod, a motor output shaft is connected with slope (mixing) shaft one end, the slope (mixing) shaft other end is equipped with stirring paddle leaf, all be equipped with the cavity in vertical (mixing) shaft and the connecting rod, the feed inlet communicates with the cavity of vertical (mixing) shaft, the cavity of vertical (mixing) shaft and the cavity of connecting rod intercommunication, be equipped with a plurality of liquid holes on the connecting rod, this internal bottom of reaction kettle is equipped with the stirring frame, stirring frame and horizontal agitator shaft connection, horizontal (mixing) shaft is perpendicular with vertical (mixing) shaft, and stretch out output shaft of this external and second motor of reaction kettle. The design of slope (mixing) shaft, connecting rod drainage and bottom stirring frame makes the mixed effect of feed liquid among the reaction kettle better.