The utility model relates to an axial-flow blower, which comprises a housing, a motor and an impeller. The axial-flow blower is characterized in that a pedestal is arranged in the housing for fixing the motor; the motor is arranged at the central part of the housing through the pedestal; and the impeller is arranged on the motor shaft of the motor. By directly fixing the motor at the central part of the housing and directly arranging the impeller on the motor shaft of the motor, the blower has the advantages of reduced assembly structure, reasonable structure design, convenient assembly, smooth rotation, stable air quantity, high reliability, long service life, reduced maintenance cost, and no need for adjusting the blower fittings, and can effectively reduce the use cost of the users and also solve the problems of the prior axial-flow blower such as unreasonable structure, poor stability, short service life and high maintenance cost. The axial-flow blower can be widely used for ventilation in occasions such as workshops, warehouses, public places, and flower greenhouses.