The invention provides a tee joint material fluidistor of an improvd structure. The fluidistor comprises side discharge ports, discharge flanges, a tee joint body, a top feed port, a feed flange, a bottom air inlet pipe, a side air inlet pipe, a vibration device, an intercepter plate, a preheating device, an air pipe joint, a fixed bolt and a protection plate, and the side discharge ports are installed at the left side and the right side of the tee joint body through the discharge flanges; the top feed port is installed on the upper portion of the tee joint body through the feed flange; the bottom air inlet pipe is installed at the lower side of the tee joint body through the air pipe joint. According to the fluidistor, through the arrangements of the vibration device, the preheating device, the intercepter plate and the protection plate, it is facilitated to improve the feeding efficiency, the fluidization degree is improved, the failure rate is reduced, and the market application and popularization are facilitated.