The invention relates to the technical field of aerated brick processing, in particular to an aerated brick cutting device convenient to use. The aerated brick cutting device convenient to use comprises a panel; telescopic supporting legs are vertically arranged at four corners of the bottom of the panel; a first strip-shaped hole is horizontally formed in the middle of the panel; a cutting wheelis vertically arranged in the first strip-shaped hole; a connecting shaft is arranged in the middle of the cutting wheel, located below the panel and connected with a first drive mechanism; the panelis further provided with two second strip-shaped holes parallel to the first strip-shaped hole, and the two second strip-shaped holes are located in the two sides of the first strip-shaped hole; vertically-arranged vertical rods are inserted in the two second strip-shaped holes; and vertically-arranged push plates are connected to the tops of the two vertical rods. The aerated brick cutting deviceconvenient to use has the advantages of being simple in structure, convenient to use and low in operation hazard, and can be conveniently used for cutting aerated bricks.