Islamic Interpretation of Dreams (Ibn-i Sirin):
(Kiln; Oven) In a dream, a furnace means distress, burdens, trouble and suspicion.
Seeing a limekiln in a dream means backbiting people of knowledge or religious scholars.
As for a brick-kiln in a dream, it means oppression, injustice or polytheism.
A furnace or a kiln in a dream also represents hell-fire and its people.