The present disclosure discloses a swing-type sensor assembly, comprising a support and a sensor vibrator. The support is provided with a pin shaft, and the sensor vibrator is connected to the pin shaft and capable of swinging about the pin shaft. The support is further connected to an air pipe, which is capable of blowing air towards the sensor vibrator. The air pipe is provided with a control valve, an inlet of which is connected, via a pipe, to a supply for clean and dry compressed air. The swing-type sensor assembly saves the sensor vibrator from easy adhesion, thus ensuring a restoring force thereof.