LZ series high-temperature cloth bag filter depends on high-frequency and ambient vibration dust cleaning, flat bag advanced filter material in grille permutation and far-infrared device to keep the flat bag working effectively. This equipment can solve the hard problems of harden and rust which are caused by high-temperature, alkali-containing dust in water-glass sand, and iron powder in the dust. During cleaning dust, the deformation of cloth bag is infinitely small. The cloth bag is not easy to damage, and thus it has a long service life.