Heating device of dewaterer

The utility model relates to a heating device of dewaterer to process the biological tissue slice, which comprises a heating soleplate (1), a heater (6), a thermal conductivity plate (2), a thermal conductivity wallboard (2) and two thermal conductivity wallboards which are parallel to the thermal conductivity isolation board (3). The device is characterized in that the thermal conductivity isolation board and the heating soleplate is a casting whole. The two thermal conductivity wallboards (5) which are vertical to the thermal conductivity isolation board are fixed on the heating soleplate. The heating device is simple in manufacture, high in processing precision, low in cost, and can enable the melting wax cylinder to closely cooperate with the heating device so as to enhance the heating efficiency and facilitate the replacement of waste wax.