The invention relates to a micropowder conveying device, which includes a feed hopper, a solenoid valve, a feed pipe and a conveying pipe. The conveying pipe is provided with a filter screen for filtering dust, and the filter screen is detachably installed on the side wall of the conveying pipe. , the top of the delivery pipeline is provided with an atomizing nozzle, a water supply pipeline and a control valve, one end of the water supply pipeline is connected to the atomization nozzle, the other end is connected to the water supply tank, and the control valve is set on the water supply pipeline to control the opening and closing of the water supply pipeline Closed, the control valve is connected with the solenoid valve at the same time, when the solenoid valve is opened, the control valve is triggered to open at the same time. The invention sprays atomized water vapor through the atomizing nozzle, so that the dust falls together with the water vapor to achieve the purpose of dust reduction. At the same time, the filter screen can filter out a part of the dust, so that the dust will not fly and float into the external environment, thereby avoiding dust. Harmful to the health of the staff, it can also avoid the waste of raw materials, reduce the labor intensity of workers, and ensure the normal operation of the conveying device.