NOVELTY - Energy saving and emission reduction grain wind power drying machine comprises a drier main body, a waste heat recycling and smoke and dust purifying chamber, a gas flow direction control system, an electric fan and a power distribution control system. A hot air furnace is used for cooling and heating air blown by normal pressure of the electric fan into the drier main body of a drying chamber, and the air passes through the left side of an airflow valve. The right side of the airflow valve is set in the air flow passage. The air flow passage is provided with a gap for passage of grain.    USE - Used as an energy saving and emission reduction grain wind power drying machine.    ADVANTAGE - The machine comprising the drying chamber does not have dead angle at the inner side of each position, uniformly dries the grain, and saves energy consumption by 17.15% in comparison with that of a drying tower, and many vertical air tubes inside the drying chamber are of the same in height, and pressure balancer is added, so that flow of dry hot air entering the many air tubes inside the drying chamber is equal, and space below the ground of the dryer main body is used as an afterheat recovery and smoke purifying device.    DETAILED DESCRIPTION - Energy saving and emission reduction grain wind power drying machine comprises a drier main body, a waste heat recycling and smoke and dust purifying chamber, a gas flow direction control system, an electric fan and a power distribution control system. A hot air furnace is used for cooling and heating air blown by normal pressure of the electric fan into the drier main body of a drying chamber, and the air passes through the left side of an airflow valve. The right side of the airflow valve is set in the air flow passage. The air flow passage is provided with a gap for the passage of the grain subjected to heating and evaporating the water. The steam is evaporated from the other end side of a first conveying system of the airflow channel by negative pressure of the fan. The air is discharged from the machine by the airflow valve to achieve better drying results. The airflow valve is provided with a time controlling unit. An air outlet of the drier main body containing air is used as a drying medium whose flowing direction changes at regular interval. The machine simultaneously performs drying and uniform drying of grain.    DESCRIPTION OF DRAWING(S) - the drawing shows a schematic representation of the energy saving and emission reduction grain wind power drying machine.