The invention belongs to the field of mixing equipment, in particular relates to a screening, mixing and moistening mechanism. The screening, mixing and moistening mechanism comprises a
barrel, a screener, a mixer and a moistener, wherein the screener is mounted at the upper end of the
barrel, the mixer is mounted on the middle portion of the
barrel, and the moistener is mounted on the lower portion of the barrel. The screener comprises a
sieve, a motor, an eccentric shaft, a transmission shaft and a connecting rod, the
power output shaft of the motor drives the eccentric shaft to rotate, the eccentric shaft drives the connecting rod to move up and down, the connecting rod drives the transmission shaft to move, and the
tail end of the transmission shaft is connected with the
sieve. The mixer comprises a stirring rod and a motor which drives the stirring rod. The moistener comprises a cylinder, a water tank, a pressure valve and a
nozzle, a
piston of the cylinder is connected with the water tank, a water outlet of the water tank is communicated with the pressure valve, and the
nozzle is mounted on an opening of the pressure valve. According to the screening, mixing and moistening mechanism, the screener, the mixer and the moistener are arranged in one barrel, so that the three existing independent mechanisms can be integrated.