The invention relates to a fire extinguishing device, in particular to a wind power and sand power combined fire extinguishing device for fire protection and aims to achieve the technical effect of providing the wind power and sand power combined fire extinguishing device for fire protection which is diversified in fire extinguishing manner, high in work efficiency and high in practicability. To achieve the technical effect, the wind power and sand power combined fire extinguishing device for fire protection comprises a first bearing seat, a speed reducing motor, a second bearing seat, a top plate, a right frame, a first rotating rod, a flat belt, a second rotating rod, a third rotating rod, a second gear and the like; and the left side of the top of a workbench is connected with an air discharging pipe, the air discharging pipe is internally provided with a filtering mesh and a second one-way valve, and the second one-way valve is located on the right side of the filtering mesh. By means of the wind power and sand power combined fire extinguishing device for fire protection, the effects that the fire extinguishing manners are diversified, work efficiency is high, and practicability is high are achieved, and when fire extinguishing work is performed, work efficiency of the whole fire extinguishing work can be improved by means of the wind power and sand power combined fire extinguishing device.