Portable pulverized coal sampling device

The portable pulverized coal sampling device comprises a material containing box, telescopic rods are fixed to the two sides of the top of the material containing box, sleeve rods are movably connected to the outer walls of the two telescopic rods in a sleeved mode, a connecting rod is fixed to the tops of the two sleeve rods, protective plates are fixed to the two sides of the connecting rod, and lifting handles are fixed to the tops of the protective plates; according to the utility model, the fineness of coal ash used by different boilers is different from that of coal ash put into the boilers, and the sieve pores used for sampling different boilers are different, so that one sieve pore leaks out from the leaking groove of the leaking stoppage plate according to the sampling requirement of the boilers, and the sieve pore at the leaking groove is adjusted by rotating the rotating handle; the material containing box is filled with large-volume coal ash, the time for containing the coal ash in the boiler by t