Centrifugal fan of multiunit fan blade

The utility model discloses centrifugal fan of multiunit fan blade comprises motor, fan assembly, connector, metal frame. The fan assembly comprises casing, fan blade axle, axial-flow type fan blade, centrifugal impeller, support, bearing. The motor shaft of motor and the fan blade axle of fan assembly are connected as an organic wholely by the connector, motor and fan assembly support fixedly by the metal frame. The casing is the circular shape, and its cross sectional view is the T shape. The fan blade axle is installed in the casing, and the epaxial multiunit fan blade of fan blade comprises 1-17 group's axial-flow type fan blade and 1 centrifugal impeller of group. When the fan blade rotation of axes, because centrifugal action, two blades air within a definite time passes and transfers the energy by fast toward the motion of outer fringe direction, and the quick stack of wind pressure quilt has just formed the high pressure, and its speed of wind-force obtains increasing. Behind a set of fan blade, will be quickened once more under the air is channeled into by the wind channel again, owing to the multiunit fan blade passes the commentaries on classics energy, the wind pressure is superposeed fast, has just formed high pressure or high suction.