High polymer chemical dust suppressant for suppressing building dust raising and preparation method of high polymer chemical dust suppressant

The invention provides a high polymer chemical dust suppressant for suppressing building dust raising, which belongs to composite dust suppressants and mainly comprises a binder, a surfactant and a water-retaining agent. The binder is a sodium alginate/polyvinyl alcohol/carboxymethyl cellulose (SA-PVA-CMC) polymer mixture; the surfactant is dodecyl dimethyl betaine; the water-retaining agent is carboxymethyl chitosan, and the high polymer chemical dust suppressant is prepared by adopting a polymer blending method. The raw materials of the dust suppressant are good in biodegradability, and the dust suppressant can effectively reduce the concentration of building dust and avoid secondary dust raising while having the advantages of good bonding, wetting and consolidation performance. Compared with a traditional chemical dust suppressant, the high polymer chemical dust suppressant has the advantages that dust sprayed with the high polymer chemical dust suppressant has higher mechanical properties such as wind ero