Powder mixing device for corrugated pipe production

The utility model discloses a powder mixing device for corrugated pipe production, which comprises a bottom plate and a mixing barrel, the upper end of the bottom plate is fixedly connected with supporting vertical plates which are correspondingly arranged on two sides, the opposite sides of the supporting vertical plates on the two sides are provided with sliding chutes which are arranged along the height direction, the sliding chutes are internally connected with sliding blocks in a sliding manner, and the sliding blocks are arranged in the mixing barrel. Rotating shafts are rotationally connected to the opposite sides of the sliding blocks on the two sides, the material mixing barrel is fixedly connected between the rotating shafts on the two sides, a sealing barrel cover is arranged at the upper end of the material mixing barrel, an adjusting rod is hinged to the bottom face of the material mixing barrel, an adjusting plate is fixedly connected to the upper end of the bottom plate, and a rotating disc is