Drainage assembly and garbage disposer comprising same

The utility model provides a drainage assembly and a garbage disposer comprising the drainage assembly, relates to the technical field of garbage disposers, and solves the technical problems that kitchen garbage cannot be discharged and peculiar smell is generated due to the fact that a drainage pipe is easy to block. The drainage assembly comprises a drainage pipe, a blockage monitoring piece, an ultrasonic vibration assembly, a hot water assembly and a washing liquid supply assembly, and the blockage monitoring piece is installed in the drainage pipe to monitor whether the drainage pipe is blocked or not; the ultrasonic vibration assembly is installed on the outer side of the drainage pipe and used for removing blockage through ultrasonic vibration after the drainage pipe is blocked. The hot water assembly and the washing liquid supply assembly are both connected with the drainage pipe so as to supply hot water and washing liquid into the pipe after the drainage pipe is blocked. The garbage disposer is moun