Disposable multifunctional oral care cleaning brush

The utility model provides a disposable multifunctional oral care cleaning brush, and particularly relates to the technical field of medical consumables. A disposable multifunctional oral care cleaning brush comprises a brush head and an outer sleeve, the brush head is fixedly arranged on a brush rod, the brush rod is fixedly connected with the outer sleeve, the brush rod is of a hollow structure, a round rod is arranged outside the brush rod, a liquid storage device is fixedly arranged at the bottom of the outer sleeve, and a liquid outlet device is arranged below the liquid storage device. The liquid storage device comprises a first liquid storage cavity and a second liquid storage cavity. The oral cavity cleaning device has the advantages that different solutions needed by oral cavity nursing and cleaning can be stored through the liquid storage cavities, normal saline and chlorhexidine can be continuously conveyed to the cleaning cotton swab and the oral cavity cleaning brush, and the injection outer slee