The invention discloses an air purification device capable of removing dust conveniently. The air purification device capable of removing dust conveniently comprises a purification barrel. Air inlet pipes communicate to the left side of the purification barrel at equal intervals. Clamping rods are connected to the inner sides of clamping holes in a clamped mode. A valve seat is arranged in an inner cavity of each air inlet pipe. Compression springs are connected to the outer sides of the valve seats at equal intervals. Filter mesh plates are connected to the middle of the top of an inner cavity of the purification barrel at equal intervals. A screw rod is connected to the bottom of a transmission gear and sleeved with a mounted nut. A plate is connected to the outer side of the mounted nut. Through grooves are formed in the inner side of the plate at equal intervals. Brush bristles are connected to the inner sides of the through holes. Electric heating wires are connected to the outer surface of a metal pipe at equal intervals. The top of the metal pipe communicates with a feed pipe. The air purification device capable of removing dust conveniently has the advantage that dust depositing in the purification device can be removed and controlled conveniently, and the problem that dust cannot be removed conveniently or in time and consequently the practicability of the air purification device is reduced is solved.