Closestool flushing device and closestool

The utility model relates to the technical field of closestool flushing, and provides a closestool flushing device and a closestool, the closestool flushing device comprises a flushing assembly, the flushing assembly comprises a first flushing pipe, a second flushing pipe and a third flushing pipe which are communicated in sequence, the first flushing pipe is provided with a first transmission part coaxial with the first flushing pipe, and the second flushing pipe is provided with a second transmission part coaxial with the third flushing pipe; a second transmission part coaxial with the third flushing pipe is arranged on the third flushing pipe, and the first flushing pipe and the third flushing pipe can rotate; the water tank assembly comprises a water tank containing water and a connector communicated with the interior of the water tank, and the connector is communicated with the first flushing pipe and/or the third flushing pipe; and an angle control assembly; the closestool is provided with the closestoo