NOVELTY - The device comprises a connecting unit for transferring silicon nanoparticles to a guiding unit, a cooling unit, an inlet through which the silicon nanoparticles enter, a moving plate for moving the silicon nanoparticles in a zigzag pattern, a rotating plate arranged vertical to a fixing plate, a housing having an inclined portion, a first hole formed in a middle portion of the fixing plate, a second hole formed on an edge portion of the rotating plate, and a gas supplying unit for supplying a gas to the silicon nanoparticles.    USE - Apparatus is useful for collecting silicon nanoparticles (claimed) that are useful in a lithium ion secondary battery, a solar cell and an LED.    ADVANTAGE - The compact device successively and easily collects the nanoparticles with reduced gas loss and improved cooling performance.    DETAILED DESCRIPTION - The device comprises a connecting unit for transferring silicon nanoparticles to a guiding unit, a cooling unit, an inlet through which the silicon nanoparticles enter, a moving plate for moving the silicon nanoparticles in a zigzag pattern, a rotating plate arranged vertical to a fixing plate, a housing having an inclined portion, a first hole formed in a middle portion of the fixing plate, a second hole formed on an edge portion of the rotating plate, and a gas supplying unit for supplying a gas to the silicon nanoparticles. The rotating plate is provided with a driving unit that transmits a rotational force, where the driving unit comprises a drive motor. An upper portion of the fixing plate and rotating plate are provided with traps, grooves, and holes. The housing comprises a pumping portion by which the silicon nanoparticles are forced to move. A vacuum chamber is connected to the connecting unit. The vacuum chamber is provided with a crucible. The gas supplying unit comprises an exhaust port for discharging the gas to the bottom portion of the housing, and has a gas circulator to supply unreacted gas to the bottom portion of the housing. The gas circulator has circulation pipes. The cooling unit comprises a cooling channel having a cooling fluid. The cooling fluid is moved according to the thickness of the housing and the connecting unit.