Fog machine

The invention discloses a fog machine, relates to fog generation equipment, and particularly relates to an efficient fog machine used for places such as landscapes, stage backgrounds and greening. The fog machine comprises a liquid storage barrel (1), spray pipes (2) and atomization nozzles (3), the liquid storage barrel (1) is connected with an air inlet pipe (4) and a water inlet pipe (5), the lower ends of the spray pipes (2) extend into the liquid storage barrel (1), liquid inlet holes of the spray pipes (2) extend into the portion below the liquid level in the barrel, air inlet holes (6) are formed in the walls, located above the liquid level in the barrel, of the spray pipes (2), the atomization nozzles (3) spray water-air flows to collision surfaces (16) by means of spray holes (7), and the allocation ratio of sectional areas of liquid inlet holes to total areas of the air inlet holes (6) to the total areas of the spray holes (7) is 1 to 0.72-2 to 0.04-0.36. The fog machine has the advantages of being reasonable in design, convenient to use and good in atomization effect, atomization is full, and a large amount of water can be saved.