The invention relates to the technical field of tea machines, in particular to a small crane screening machine. A two-screen and three-opening screening bed is arranged on the inner side of a hanging frame, and is obliquely arranged; the four corners of the upper end of the hanging frame are further provided with universal joint connecting rods; two vertical tea outlets are formed in one end of the two-screen and three-opening screening bed; the portion, at the lower ends of the vertical tea outlets, of the two-screen and three-opening screening bed is further provided with a center ash port; a connecting barrel is further connected to the upper end of the other side of the two-screen and three-opening screening bed; a sealing type discharging hopper is communicated with the upper end of the connecting barrel; a pair of tea sucking dust removers are further installed at the upper end of the sealing type discharging hopper; a bottom base frame is further installed at the lower end of the hanging frame; a three-phase motor is further installed at the upper end of the bottom base frame, is connected with a driving crank shaft through a transmission mechanism, and extends to the lower end of the two-screen and three-opening screening bed; and a balance block is further installed at the upper end of the driving crank shaft. The small crane screening machine can perform large-tonnage small-space screening on bag-steeping tea in a tea screening line, can achieve automatic tea screening, and lowers the labor intensity.