Coal gasification equipment

The invention relates to coal gasification equipment which comprises a burner, a combustion chamber and a chilling chamber, and the burner is arranged at the top of the combustion chamber; the combustion chamber is communicated with the chilling chamber through a slag hole; the coal gasification equipment comprises a plurality of cooling pipes, and the cooling pipes are spirally coiled around the axis direction of the combustion chamber; a plurality of scratch nails are arranged on the inner wall of the cooling pipe, and castable is poured between every two scratch nails; the coal gasification equipment further comprises a first chilling pipe for leading out a refrigerant and a second chilling pipe for leading out gas; the air outlet of the second chilling pipe is positioned below the lead-out opening of the first chilling pipe; the coal gasification equipment further comprises a heat exchanger and a process gas separation catcher, and the heat exchanger is arranged in the chilling chamber and communicated wi