Portable multifunctional cervical vertebra rehabilitation pillow

The utility model discloses a portable multifunctional cervical vertebra rehabilitation pillow which comprises a pillowcase and a pillow inner body arranged in the pillowcase, lateral lying supportingparts are arranged on the two sides of the pillow inner body respectively, a neck supporting stretching part is arranged between the lateral lying supporting parts, a cone supporting protrusion is arranged on the front portion of the neck supporting stretching part, and a cervical vertebra supporting protrusion is arranged on the back portion of the pillow inner body. A sleep aiding chamber is arranged on the lower portion of the side-lying supporting portion, a through hole is formed in the upper portion of the sleep aiding chamber, a stretching rod groove is formed in the lower portion of the neck supporting stretching portion, a stretching column is arranged in the stretching rod groove, a height adjusting pad is integrally formed on the rear side of the pillow inner body, and a head supporting groove is forme