Computer network security early warning device

The utility model discloses a computer network security early warning device, which comprises a security early warning device body installed on a computer network control box, the security early warning device body comprises a temperature sensor embedded and fixed on the right side of the computer network control box, and the detection end of the temperature sensor extends into the computer network control box. Through the arrangement of the temperature sensor, the controller and the audible and visual alarm, an alarm can be given in time to remind people when the temperature is monitored to be high, meanwhile, air blowing and heat dissipation can be conducted in time when the temperature is high in cooperation with the arrangement of the exhaust fan, the response timeliness is improved, and the service life is prolonged. Through the arrangement of an air speed monitoring air blowing and exhausting mechanism, a knocking and vibrating mechanism, a circulation driving mechanism and a driving motor, when it is m