Gas and material mixing and conveying mechanism

The invention discloses a gas-material mixing and conveying mechanism which comprises a support shell, a sealing pressing plate, a sealing flexible pipeline, a pressing plate set driving mechanism and a gas-material mixing cavity, a feeding opening is fixedly formed in the top of the support shell, a discharging opening is fixedly formed in the bottom of the support shell, and the sealing flexible pipeline is installed in the support shell; the upper part of the sealed flexible pipeline is communicated with the feed port, and the lower part of the sealed flexible pipeline is communicated with the discharge port; the pressing plate set driving mechanism can drive the sealing pressing plate to do reciprocating motion, and the discharging port is communicated with the gas and material mixing cavity. The closed non-return-air non-rotor structural design is adopted, full-closed conveying is achieved, rotary waste gas emission is avoided, dust raising is completely eradicated, the problem that the proportion is aff