Air purification device

The invention discloses an air purification device which comprises a centrifugal fan, an inner guide barrel and a device shell, wherein an air inlet pipe is arranged on one side of the device shell; a drainage opening is formed in the bottom of the device shell; the inner guide barrel is arranged in the device shell; an air outlet pipe is arranged on the other side of the inner guide barrel, opposite to the air inlet pipe; the air outlet pipe penetrates through the device shell; the centrifugal fan is arranged at the upper part of the inner guide barrel; a first guide pipe surrounds on the outer wall of the inner guide barrel; an inlet through which the first guide pipe penetrate in, and an outlet through which the first guide pipe penetrates out are formed in the device shell. The guide pipe is used for fixing the air flow direction, so that water vapor and waster components in air (such as wet air or air containing fiber) can be effectively separated; the air purification device is automatically cleaned, simple to maintain, energy-saving, environmentally friendly and wide in application scope.