Automatic cleaner for indoor floor

The invention discloses an automatic cleaner for an indoor floor, and relates to the field of floor cleaning. The automatic cleaner comprises a box body, wherein a fixing plate is fixedly mounted on the inner side wall of the box body; a partition plate is fixedly mounted on the side wall of the fixing plate; a motor chamber, a water storage chamber and a cleaning chamber are arranged in the box body; and a direct current motor and a storage battery are fixedly mounted on the side wall of the motor chamber. Through the cooperative use of the direct current motor, a first conveying wheel, a second conveying wheel, a first conveying roller, a second conveying roller and a water pump, the direct current motor is started to drive a conveying belt to carry out transmission so as to indirectly drive a crawler belt to carry out transmission, so that a brush on the crawler belt rubs and brushes the floor, the automatic cleaning function of the indoor floor is realized, manual dragging and sweeping are not needed, and