Early warning device suitable for road crosswind and wind-blown snow disasters and using method

The invention discloses an early warning device suitable for road crosswind and snow blowing disasters and a using method, the device comprises a light-transmitting lampshade, an early warning device body and a base which are sequentially connected from top to bottom, and the interior of the early warning device body is a cavity; through holes are formed in the two side walls, parallel to the extending direction of a road, in the early warning device body, each through hole is provided with a dustproof net, generator blades are arranged in the center of the interior of the early warning device body and connected with a transmission shaft of a generator, the generator is electrically connected with a circuit board, and the circuit board is electrically connected with the circuit board. At least one light emitting diode is arranged on the circuit board; and the generator, the circuit board and the light-emitting diode are arranged in the light-transmitting lampshade. The device is particularly suitable for road