Dreaming of chimneys means good luck, arrival. If the chimney falls down, it means something may happen at home. If the chimney is upright, it means that some accidental events may make you unhappy. If you hide in the chimney, your business will get worse.
It is an unlucky dream to dream of black smoke from the fire, which means that you may have a disease, but you have never found it. You should seek medical examination and treatment as soon as possible.