Portable bladeless fan

The utility model provides a portable bladeless fan which comprises a shell, an air inlet portion is arranged on the rear side of the shell, an air outlet portion is arranged on the front side of the shell, the air inlet portion and the air outlet portion are communicated in the shell, and the shell comprises a front shell body and a rear shell body. The pressurizing piece is connected with the front side of the front shell; the mixed flow fan is located in the front shell and connected to the rear side of the pressurizing piece, and the mixed flow fan rotates around a rotating shaft to generate airflow; the driving assembly is located in the front shell and drives the mixed flow fan to rotate; the wire passing groove is formed in the rear side of the pressurizing piece; the circuit board is located in the front shell and located behind the wire passing groove, the circuit board is provided with a first face and a second face which are opposite and parallel to each other, the first face of the circuit board f