The invention discloses an inspection window with a sweeping device. The inspection window comprises an organic glass window body (1) and an inner wall sweeping mechanism. The inner wall sweeping mechanism is vertically mounted on the organic glass window body through a mounting hole formed in the organic glass window body and comprises a connecting shaft (2), an outer supporting shaft sleeve (3), an inner supporting shaft sleeve (4), a sweeping plate (5) and a handle (8). The outer supporting shaft sleeve is arranged on the outer end face of the organic glass window body and fixedly mounted on the mounting hole of the organic glass window body. The connecting shaft is connected with the outer supporting shaft sleeve in a penetrating mode, the inner supporting shaft sleeve positioned in the circumferential direction of the connecting shaft is arranged on the section, located on the inner side, of the connecting shaft in a sleeving mode, and the handle is fixedly mounted on the section, located on the outer side, of the connecting shaft. The sweeping plate is arranged in the radial direction of the connecting shaft and is fixedly mounted on the inner supporting shaft sleeve. According to the inspection window with the sweeping device, dust attached to the inner side face of the inspection window can be swept at any time and the dust clogging phenomenon is found in time during application of a dust removing device.