Copolymerization manufacturing method for rapid dissolution type anionic polyacrylamide

The invention discloses a copolymerization manufacturing method for rapid dissolution type anionic polyacrylamide. The method comprises: taking acrylamide and acrylic acid as raw material, adding deionized water for mixing, adding sodium hydroxide into a solution, controlling a kettle temperature to range from 0 DEG C to 15 DEG C, adding an aid, performing mixing and stirring, and then transferring into a polymerization kettle; charging nitrogen into the kettle, adding an initiator for polymerization reaction after 30 minutes, continuing charging the nitrogen after adding until a reaction solution is thickened, and sealing the polymerization kettle, wherein the polymerization reaction is carried out within a range of which the ph (potential of hydrogen) being 6-9, reaction time is 4-10 hours, and the temperature of the reaction solution naturally rises up; when the reaction solution turns into a colloid, charging air into the polymerization kettle for pressurizing, extruding a colloidal product from the botto