Highway marking device easy to adjust

The utility model discloses an easy-to-adjust expressway marking device which comprises a box body, and a mounting frame is arranged below the box body; a hot melting kettle is arranged in the box body and is in a hollow cylinder shape, and the lower end of the hot melting kettle extends to the position below the mounting frame; a motor is arranged on the box body, the output end of the motor extends into the hot melting kettle and is provided with a rotating shaft, and a plurality of stirring blades are arranged on two sides of the rotating shaft; the lower end of the hot melting kettle is funnel-shaped, and the lowest point is communicated with a nozzle; width adjusting assemblies are arranged below the mounting frame and located on the front and rear side faces of the nozzles. A cleaning assembly is arranged on the mounting frame and located on one side of the box body, and a drying assembly is arranged on the mounting frame and located on the other side of the box body. The road surface cleaning, marking