Melt-blown fabric production line can realize continuous automatic production of melt-blown. As a technology for producing melt blown fabrics, melt-blown fabric is to heat, extrude, mele, and extrude polymer resins, and form ultra-fine fibers under the action of high-speed hot air flow. The pressure causes the polypropylene material melted into a liquid to be ejected from the nozzle to form a filament.