Hot-blast stove

The utility model discloses a hot-blast stove which comprises a combustion chamber, a hopper, a screen, a fire grate, an aeration pipe, a regenerative chamber and an ash discharging opening. An inserting opening is formed in the center of the top of the combustion chamber. A flame opening is formed in one side of the outer wall of the combustion chamber. The lower end of the hopper is inserted into the combustion chamber through the inserting opening. The screen is arranged above the flame opening, and is in a cone shape with the diameter gradually increased from one end to the other end. The fire grate is arranged below the flame opening. The aeration pipe comprises a main pipe and a branch pipe and is arranged under the fire grate. A smoke inlet is formed in the lower end of the regenerative chamber. A chimney is arranged at the top of the regenerative chamber. The smoke inlet is connected with the flame opening. A circulating pipeline is arranged in the regenerative chamber. The ash discharging opening is formed in the bottom of the combustion chamber. The hot-blast stove is simple in design and capable of ensuring that coal is combusted fully, reduces pollution to the environment and saves resources.