Filter

The utility model relates to the technical field of filters, in particular to a filter which is high in filtering efficiency, sufficient in filtering and convenient in residue cleaning, and comprises a filtering tank body, a filtering cylinder is clamped on the filtering tank body in a sliding manner, a discharging pipe is fixedly communicated with the filtering tank body, and a valve is mounted on the discharging pipe. A U-shaped frame is fixedly connected to the top end of the filtering tank body, a fixing plate is fixedly connected to the U-shaped frame, a driving motor is fixedly installed on the fixing plate, an output shaft of the driving motor penetrates through the fixing plate and is provided with a transmission shaft, the filtering cylinder and the transmission shaft are connected through a first transmission mechanism, and an adjusting block is rotationally connected to the U-shaped frame; the adjusting block is connected with the transmission shaft through a second transmission mechanism, the adju