The utility model relates to a greenhouse coal briquet heating stove, which is characterized in that the stove is a cuboid (25) which is welded by five iron plates. The side which lacks an iron plate is used as a stove bottom for setting a furnace grill (12). Fire cement with the thickness of 1 centimeter is arranged at the inner surface (or inner wall) of a stove body which is welded by the iron plates. An opening arranged at the top of a box body is provided with a reverse funnel-shaped heat accumulation cover (8). One side of the front wall of the stove body is provided with a coal inlet, and the height and width of the coal inlet is larger than the dimension of a stack of coal. The shape of the side burning type coal stove is fixed, and the specification is unified through improvement. The greenhouse coal briquet heating stove is suitable for various heating greenhouses. The utility model has the advantages of convenient operation, time saving, labour saving, labor strength relief, a little pollution, coal saving and energy saving. The greenhouse coal briquet heating stove is the ideal heating equipment for the production of the vegetables in winter.