Glass fiber needle felt filter is a reasonable structure, excellent performance of the new high-temperature filter material, which is 100% glass fiber as raw material, acupuncture into felt. With three-dimensional pore structure, high porosity, low resistance, dust removal efficiency than fabric filter, up to 99.9%. Filtration speed than fabric filter about twice as high. The filter is suitable for carbon black chemical, steel, metallurgy, coal-fired boilers, refractories and cement and other industries of high temperature flue gas filtration. It is suitable for use in pulse cleaning and high speed anti-blowing bag filter. High temperature, corrosive media, long-term test, excellent performance, effective control of dust pollution, the recovery of valuable particles of the product.