The invention discloses a solid waste treatment device convenient to use. The solid waste treatment device comprises a box body. The right side of the top of the inner wall of the box body is fixedly connected with an inclined pipe. A smashing tooth disc is arranged in the inclined pipe. A third rotary shaft is arranged in the center of the smashing tooth disc in a penetrating manner. The rear side of the third rotary shaft sequentially penetrates the inclined pipe and the box body and is fixedly connected with a second motor. The left side of the inclined pipe communicates with a discharging pipe. Third inclined plates are transversely arranged on the two sides of the inner wall of the box body. According to the solid waste treatment device, through the arrangement of a first rotary shaft, a first motor, a conveying belt, a shell, a second rotary shaft, a second roller, the third rotary shaft, a first roller, a first inclined plate, the smashing tooth disc, the inclined pipe, a driven tooth disc, a driving tooth disc and a second motor, the problem that an existing solid waste treatment device is inconvenient for a user to use is solved, and the solid waste treatment device has the beneficial effect of being convenient for the user to use and is simple in structure and worthy of popularization.