The utility model relates to the technical field of coal mine processing accessory devices, in particular to a band-type brake of a coke dry quenching elevator. The brake device is simple in structure, convenient to work, capable of automatically moving the brake for braking, high in working efficiency, convenient to work, capable of bringing convenience to a user and high in practicability. Moreover, the braking effect is relatively strong, and the use safety is relatively high, so that the use reliability is improved; the device comprises a fixing frame, two sets of first brakes, a rocker and a connecting plate, and a groove is formed in the top end of the fixing frame; a clamping groove is formed in the rear side wall of the groove, a contraction frame is arranged in the clamping groove, the device further comprises a servo motor, a threaded rod, a threaded pipe, a first chain wheel, a second chain wheel, two sets of springs, a magnet buckle, two sets of fixing rods and a chain, thechain is arranged on the first chain wheel and the second chain wheel in a sleeving mode, and a metal block is arranged on the bottom wall of the partition plate; and two sets of second first brakesare further included, the two sets of second brakes are installed on the front side wall of the groove and the bottom wall of the groove correspondingly, and each set of second brakes comprises two sets of brake discs.