The vertical cement kiln as one cement calcining equipment consists of kiln body, kiln cap stover, ventilators, coal economizer, crushing discharge and other parts. The kiln body is one ring combusting hearth between ventilators, the kiln cap stover is fixed to the top of the kiln body and communicated with it, the coal economized is provided with air inducing, air blowing and dust sliding channels and the discharger is below the kiln and vacuumicated with it. The present invention has high production efficiency, and is safe, reliable, saving in power and obvious in environment protecting effect. |