Titanium fiber sintering felt is made of metal fiber of micron grade in diameter through non-woven paving, stacking and high temperature sintering.Multilayer metal felt forms pore gradients by different aperture layers, which can control extremely high filtration accuracy and greater pollution amount than single layer felt.It can continuously maintain the filter function of the filter net cloth, and has the characteristics of three-dimensional mesh, porous structure, high porosity, large surface area and uniform pore size distribution, and has excellent structural performance.