The invention relates to a minitype dual-air-out centrifugal fan which comprises a motor, an impellor and a volute, wherein the impellor is connected to the output shaft of the motor; the impellor is arranged in the volute; the motor is arranged at the exterior of the volute; the output shaft of the motor extends into the volute; and the volute is provided with two opposite air outlets which are close to the rim of the impellor. Because a volute approximate to round is adopted for the invention, thus the structure is compact, miniaturization is realized, a dual-air-out design is also adopted for the invention, pressure and air intake can be increased in the operation process of the impellor, and the air flow field is more uniform and smoother, and the noise is reduced.