Spreading machine for roads

The utility model relates to a spreading machine for roads. The spraying device comprises a vehicle body and a spraying device body arranged on the vehicle body. The spraying device comprises a storage tank, a pressure pump and a spraying frame arranged at the tail part of the vehicle body, the spraying frame comprises two oppositely-arranged hollow spraying rods and a mounting plate for mountingthe spraying rods, a metal corrugated pipe is connected between the spraying rods, the metal corrugated pipe is connected with the storage tank through a feeding pipe, and spraying heads are arrangedon the spraying rods; a driving mechanism for driving the spray rod to move horizontally is arranged on the mounting plate; a vertical sliding groove is formed in the vehicle body, and a sliding stripmatched with the sliding groove is arranged on the mounting plate and vertically slides along the sliding groove. And a driving device for driving the mounting plate to vertically move is arranged onthe vehicle body. The utili