The invention discloses a powdery coke gemstone foaming agent. The gist of the technical scheme is that the powdery coke gemstone foaming agent is composed of cooked coke gemstone, high-viscosity attapulgite clay powder, active attapulgite clay, dodecane It is composed of sodium base sulfate, sodium percarbonate, sodium polyacrylate, sodium pyrophosphate and polynaphthaldehyde sulfonate sodium salt; the powdery coke gem blowing agent ingredients are stirred, pulverized and packaged as powder coke gem foaming agent finished product. Powdered coke gemstone foaming agent has strong foaming ability, high foaming multiple, large foam production per unit volume, good toughness of foam outer film, not easy to break, good foam stability, long-term non-foaming, fine foam, and in the medium The generated holes have the advantages of uniform size, low bleeding and good compatibility with the medium used. Products produced with powdered coke gem foaming agent can not only effectively control noise pollution, but also have the functions of heat preservation and air purification; powder coke gem foaming agent is suitable for the production of refractory light boards, light walls and Noise reduction products.