The invented apparatus is composed of backing-off machine, conveying mechanism, melt blown device, hot rolling mill and take-up machine. When production, a layer of melt-blown fabric is sprayed on the spun-bonded fabric to make them become into an organic whole, then a layer of spun-bonded fabric is added on the surface of the melt-blown fabric, and they are extruded into an organic whole by the hot rolling mill and the invented product is obtained.