Boiler centrifugal induced draught fan has the features such as low noise,simple structure,flexible regulation of the air volume and winddirection etc.It is applicable for various coal combustion.The industriaI boiler is equipped with fume extraction＆dust-collection device.The conveying gas temperature not exeed 250℃.The drive means of this fan has C-type and D-type two kinds with water-cooled integiral bearing base and air volume regulating door.If a deoscillator is chosen,the user can directly place the fan in the concrete plane.It is easy to install and debug with no need for the anchor bolt.