The twin-shaft dust humidifier, also known as the twin-shaft dust humidifying mixer, utilizes two sets of spiral blades for mixing, offering high mixing efficiency and minimal space requirement. The spiral blades are made of wear-resistant special alloy or composite ceramic, ensuring a long service life. The twin-shaft dust humidifying mixer employs a cycloidal pinwheel reducer for transmission, providing smooth operation and low noise. The mixer feeds from the top and discharges from the bottom, featuring a reasonable structure. The twin-shaft dust humidifying mixer ensures tight seals between mating surfaces for smooth operation. It is equipped with a humidification water spray system that sprays evenly, with adjustable water supply to meet requirements. The twin-shaft dust humidifying mixer is supplied with lubricating oil for the four transmission bearings via a manual hand pump, facilitating equipment operation and maintenance. The twin-shaft dust humidifying mixer is a device used for spraying water and mixing powdered materials.