Cotton blending, opening and scutching all-in-one machine

The utility model relates to the technical field of cotton spinning, in particular to a cotton mixing, opening and scutching all-in-one machine which comprises a machine box, a material guide roller, a gear, a cotton opening roller, a synchronous belt, a discharging hopper and a discharging pipe. A feeding hopper is arranged on the machine box, and a conveying belt is arranged in the feeding hopper. The material guide rollers are symmetrically and rotationally arranged in the machine box, and straight needles are arranged on the material guide rollers. A plurality of cotton opening teeth are arranged on the cotton opening roller, and a first motor for driving the material guide roller and the cotton opening roller to rotate synchronously is arranged on the machine box. The discharging hopper is arranged on the machine box, and a fan is arranged on a side plate of the discharging hopper. The discharging pipe is arranged on the discharging hopper and communicated with the interior of the discharging hopper, an