Novel plastic formwork for arched slope protection

The utility model belongs to the technical field of arched slope protection construction, and particularly relates to a novel arched slope protection plastic formwork which comprises a straight plate, an arched plate is fixedly connected to the top end of the straight plate, a straight cover plate is detachably connected to one side of the straight plate, and an arched cover plate is detachably connected to one side of the arched plate. The straight cover plate and the arched cover plate are fixedly connected with a water conveying pipe, the bottom end of the water conveying pipe is fixedly connected with a connecting pipe, the bottom end of the connecting pipe is fixedly connected with a plurality of uniformly distributed weeping pipes, and the bottom ends of the weeping pipes are fixedly connected with sponges; the water conveying pipe is connected with an external water pump, water in the water conveying pipe flows into the water dripping pipe through the connecting pipe and drips on the sponge through the